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OMT/OMV Orbital Motors Technical Information

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Page 1: OMT/OMV Orbital Motors Technical Information

Technical Information

Orbital MotorsOMT and OMV

www.danfoss.com

Page 2: OMT/OMV Orbital Motors Technical Information

Revision history Table of revisions

Date Changed Rev

September 2021 Updated catalogue to reflect current offerings 0801

Changed document number from 'BC00000090' and '520L0407' to 'BC152886483862' 0702

March 2016 Engineering Tomorrow 0602

February 2016 Corrected Hardening specification for OMTS, OMVS 0601

November 2014 Converted to Danfoss layout - DITA CMS FA

December 2013 Table updated EL

June 2013 Drawing corrected EK

April 2013 Drawing corrected EJ

January 2013 Correct drawing EI

November 2012 Planetary Gears deleted EH

July 2012 Typo in ‘Major dia’ EG

November 2010 Dimensions changed EF

November 2009 conversions, and layout adjusted ED

Technical InformationOMT and OMV Orbital Motors

2 | © Danfoss | September 2021 BC152886483862en-000801

Page 3: OMT/OMV Orbital Motors Technical Information

Orbital motorsOrbital Motors Introduction......................................................................................................................................................... 5

Orbital Motors Features............................................................................................................................................................ 5Technical Features...................................................................................................................................................................... 5Orbital Motors Application Areas..........................................................................................................................................5

Orbital Motors Literature Overview...........................................................................................................................................6Speed, torque, and output............................................................................................................................................................7

OMTVersions................................................................................................................................................................................................8

Features.......................................................................................................................................................................................... 8Code numbers................................................................................................................................................................................... 8

Ordering......................................................................................................................................................................................... 9Technical data....................................................................................................................................................................................9

Maximum permissible shaft seal pressure.........................................................................................................................9Motor with check valves and without use of drain connection........................................................................... 9Motor with check valves and with drain connection............................................................................................... 9Motor with check valves and with drain connection............................................................................................. 10

OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH......................................................................................................10Pressure drop in motor...........................................................................................................................................................12Oil flow in drain line.................................................................................................................................................................12Direction of shaft rotation..................................................................................................................................................... 13Permissible shaft loads for OMT..........................................................................................................................................13

OMT Function diagrams.............................................................................................................................................................. 14Function diagram use............................................................................................................................................................. 17

Shaft version.................................................................................................................................................................................... 18Port thread versions.................................................................................................................................................................21

Dimensions.......................................................................................................................................................................................22OMT standard flange - European version........................................................................................................................ 22OMT standard flange - US version...................................................................................................................................... 24OMT Wheel - European version...........................................................................................................................................26OMT Wheel - US version.........................................................................................................................................................28OMT Brake-wheel - European version...............................................................................................................................30OMT Brake-standard - European version......................................................................................................................... 32OMT short - European version............................................................................................................................................. 33

OMTS.................................................................................................................................................................................................. 34Installation...................................................................................................................................................................................34Attached component dimensions......................................................................................................................................35Attached component internal splines.............................................................................................................................. 35Motor or attached component drain connection.........................................................................................................36

OMT versions and code numbers

OMV versions and code numbersOMV versions and code numbers............................................................................................................................................ 38

OMV technical dataOMV, OMVW, OMVS technical data.........................................................................................................................................40Maximum permissible shaft seal pressure............................................................................................................................40

Motor with check valves and without use of drain connection.............................................................................. 40Motor with check valves and with drain connection.................................................................................................. 41

Pressure drop in motor................................................................................................................................................................ 41Oil flow in drain line...................................................................................................................................................................... 41Direction of shaft rotation...........................................................................................................................................................42Permissible shaft loads.................................................................................................................................................................42

OMV mounting flange: Standard........................................................................................................................................42OMV mounting flange: Wheel............................................................................................................................................. 43OMV mounting flange: SAE-C.............................................................................................................................................. 43

OMV function diagramsOMV 315 function diagram........................................................................................................................................................ 45

Technical InformationOMT and OMV Orbital Motors

Contents

© Danfoss | September 2021 BC152886483862en-000801 | 3

Page 4: OMT/OMV Orbital Motors Technical Information

OMV 400 function diagram........................................................................................................................................................ 45OMV 500 function diagram........................................................................................................................................................ 46OMV 630 function diagram........................................................................................................................................................ 46OMV 800 function diagram........................................................................................................................................................ 47

Shaft versionOMV shaft version..........................................................................................................................................................................48OMV port thread versions...........................................................................................................................................................52

OMV dimensionsOMV dimensions - European version..................................................................................................................................... 53

OMV standard flange - European version........................................................................................................................53OMV Wheel - European version...........................................................................................................................................55OMV short - European version.............................................................................................................................................56

OMV dimensions - US version................................................................................................................................................... 57OMV standard flange - US version......................................................................................................................................58OMV SAE-C flange - US version............................................................................................................................................60OMV wheel - US version......................................................................................................................................................... 62

OMVSInstalling the OMVS.......................................................................................................................................................................64Attached component dimensions for OMVS.......................................................................................................................64Attached component internal splines for OMVS................................................................................................................65Motor or attached component drain connection..............................................................................................................65

Technical InformationOMT and OMV Orbital Motors

Contents

4 | © Danfoss | September 2021 BC152886483862en-000801

Page 5: OMT/OMV Orbital Motors Technical Information

Orbital Motors Introduction

Danfoss is a world leader within production of low speed orbital motors with high torque. We can offermore than 1500 different orbital motors, categorized in types, variants and sizes (including different shaftversions).

The motors size vary (rated displacement) from 130 to 800 cm3 [7.9 to 48.9 in3] per revolution.• Motor sizes:

‒ OMT and OMV

‒ TMK

‒ TMT

‒ TMTHW

‒ TMVW

Speeds range up to approximate 600 min-1 (rpm).

Maximum operating torques up to 3400 N•m [30090 lb•in] (peak) and maximum outputs up to 70 kW [95hp].

Orbital Motors Features

• Smooth running over the entire speed range

• Constant operating torque over a wide speed range

• High starting torque

• High return pressure without the use of drain line (high pressure shaft seal)

• High efficiency

• High radial and axial bearing capacity

• Long life under extreme operating conditions

• Robust and compact design

• For applications in both open and closed loop hydraulic systems

• Suitable for a wide variety of hydraulics fluids

Technical Features

The program is characterized by technical features appealing to a large number of applications and bymotors that can be adapted to a given application.

Adaptions comprise the following variants:• Motors with:

‒ integrated negative holding brake

‒ speed sensor

‒ black finish paint

• Short motors without bearings or Ultra short motors

• Wheel motors with recessed mounting flange

Orbital Motors Application Areas

The orbital motors are used in the following application areas:• Construction equipment

• Agricultural equipment

• Material handling & Lifting equipment

Technical InformationOMT and OMV Orbital Motors

Orbital motors

© Danfoss | September 2021 BC152886483862en-000801 | 5

Page 6: OMT/OMV Orbital Motors Technical Information

• Forestry equipment

• Lawn and turf equipment

• Machine tools and stationary equipment

• Marine equipment

• Special purpose

Orbital Motors Literature Overview

A general catalog of all Orbital Motors with technical data gives a quick motor reference based on:selection of orbital motor, function in hydraulic systems, power, torque, speed and capabilities. Moredetailed information can be found in an individual motor catalogs.

Literature title Literature type Reference number

Orbital Motors in General Technical Information BC152886483554

OMT and OMV Orbital Motors Technical Information BC152886483862

TMK, TMKW, TMK FL Orbital Motors Technical Information BC152886483785

TMT, TMTU, TMTW, TMT FL Orbital Motors Technical Information BC152886483631

TMTHW Orbital Motors Technical Information BC152986483537

Technical InformationOMT and OMV Orbital Motors

Orbital motors

6 | © Danfoss | September 2021 BC152886483862en-000801

Page 7: OMT/OMV Orbital Motors Technical Information

Speed, torque, and output

Maximum speed

160 200 250 315 400 500 315 400 500 630 800

800600400200

OMT OMV

min-1

(rpm)

Maximum torque

160 200 250 315 400 500 315 400 500 630 800

22000

20000

18000

16000

14000

12000

10000

8000

6000

4000

2000

2400

2200

2000

1800

1600

1400

1200

1000

800

600

400

200

lbf• in N•m

Maximum output

160 200 250 315 400 500 315 400 500 630 800

80

60

40

20

605040302010

OMT OMV

hp kW

1 2

1. Intermittend values2. Continuous values

The bar diagrams above are useful for a quick selection of relevant motor size for the application. Thefinal motor size can be determined by using the function diagram for each motor size: see OMT Functiondiagrams on page 14, or OMV function diagrams on page 45.

The function diagrams are based on actual tests on a representative number of motors from ourproduction. The diagrams apply to a return pressure between 5 and 10 bar [75 and 150 psi] when usingmineral based hydraulic oil with a viscosity of 35 mm2/s [165 SUS] and a temperature of 50°C [120°F].

Technical InformationOMT and OMV Orbital Motors

Orbital motors

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Page 8: OMT/OMV Orbital Motors Technical Information

Versions

OMT versions

Mountingflange

Shaft Port size European version

USversion

Drainconnection

Check valve Lowpressurerelease

Highpressurerelease

Main typedesignation

Standardflange

Cyl. 40 mm G 3/4 X Yes Yes OMT

Cyl. 1.5 in 1 1/16-12 UN X Yes Yes OMT

Splined 1.5 in G 3/4 X Yes Yes OMT

1 1/16-12 UN X Yes Yes OMT

Tapered 45 mm G 3/4 X Yes Yes OMT

Tapered 1.75 in 1 1/16-12 UN X Yes Yes OMT

P.t.o. G 3/4 X Yes Yes OMT

Wheel Cyl. 40 mm G 3/4 X Yes Yes OMTW

Tapered 45 mm G 3/4 X Yes Yes OMTW

Tapered 1.75 in 1 1/16-12 UN X Yes Yes OMTW

Brake-wheel Wheel bolt flange G 3/4 X Yes No X OMT FX

Thread hole flange G 3/4 X Yes No X OMT FX

Brake-standard

Cyl. 40 mm G 3/4 X Yes No X OMT FL

Splined 1.5 in G 3/4 X Yes No X OMT FL

Cyl. 40 mm G 3/4 X Yes No X OMT FH

Splined 1.5 in G 3/4 X Yes No X OMT FH

Short No output shaft G 3/4 X Yes Yes OMTS

Features

Features available (options):• Speed sensor

• Motor with tacho connection

• Viton shaft seal

• Painted

• Ultra short

Code numbers

OMT code numbers

CodeNumbers

Displacement [cm3]

160 200 250 315 400 500

151B 3000 3001 3002 3003 3004 3005

151B 2050 2051 2052 2053 2054 2055

151B 3006 3007 3008 3009 3010 3011

151B 2056 2057 2058 2059 2060 2061

151B 3012 3013 3014 3015 3016 3017

151B 2062 2063 2064 2065 2066 2067

Technical InformationOMT and OMV Orbital Motors

OMT

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Page 9: OMT/OMV Orbital Motors Technical Information

OMT code numbers (continued)

CodeNumbers

Displacement [cm3]

160 200 250 315 400 500

151B 3018 3019 3020 3021 3022 3023

151B 3024 3025 3026 3027 3028 3029

151B 3030 3031 3032 3033 3034 3035

151B 2080 2081 2082 2083 2084 2085

151B 3207 3208 3209 3210 3211 3212

151B 3200 3201 3202 3203 3204 3205

151B 4000 4001 4002 4003 4004 4005

151B 4007 4008 4009 4010 4011 4012

151B 4021 4022 4023 4024 4025 4026

151B 4028 4029 4030 4031 4032 4033

151B 3036 3037 3038 3039 3040 3041

Ordering

Add the four digit prefix “151B” to the four digit numbers from the chart for complete code number.

Example:

151B3002 for an OMT 250 with standard flange, cyl. 40 mm shaft and port size G 3/4.

Orders will not be accepted without the four digit prefix.

Technical data

Maximum permissible shaft seal pressure

Motor with check valves and without use of drain connection

The pressure on the shaft seal never exceeds the pressure in the return line.

151-320.10

Motor with check valves and with drain connection

The shaft seal pressure equals the pressure on the drain line.

OMT FX, OMT FL and OMT FH must always be fitted with drain line.

Maximum pressure in drain line is 5 bar [75 psi]

Technical InformationOMT and OMV Orbital Motors

OMT

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Page 10: OMT/OMV Orbital Motors Technical Information

151-1405.10

Motor with check valves and with drain connection

The shaft seal pressure equals the pressure on the drain line.

Maximum return pressure without drain line or maximum pressure in the drain line

– – – – Intermittent operation: the permissible values may occur for max. 10% of every minute.

Continuous operation

151-1674.10

0 100 200 300 400 500 600 700 800 max.

1500

1200

900

600

300

0

100

90

80

70

60

50

40

30

20

10

0

psi bar

P P

min-1

(rpm)

OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH

Technical data for OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH

Type OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

Motor size 160 200 250 315 400 500

Geometric displacement cm3

[in3]161.1[9.83]

201.4[12.29]

251.8[15.37]

326.3[19.91]

410.9[25.07]

523.6[31.95]

Maximum speed min-1

[rpm]cont. 625 625 500 380 305 240

int1) 780 750 600 460 365 285

Technical InformationOMT and OMV Orbital Motors

OMT

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Page 11: OMT/OMV Orbital Motors Technical Information

Technical data for OMT, OMTW, OMTS, OMT FX OMT FL and OMT FH (continued)

Type OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

OMTOMTWOMTSOMT FXOMT FLOMT FH

Motor size 160 200 250 315 400 500

Maximum torque Nm[lbf·in]

cont. 470[4160]

590[5220]

730[6460]

950[8410]

1080[9560]

1220[10800]

int.1) 560[4960]

710[6280]

880[7790]

1140[10090]

1260[11150]

1370[12130]

Maximum output kW[hp]

cont. 26.5[35.5]

33.5[44.9]

33.5[44.9]

33.5[44.9]

30.0[40.2]

26.5[35.5]

int.1) 32.0[42.9]

40.0[53.6]

40.0[53.6]

40.0[53.6]

35.0[46.9]

30.0[40.2]

Maximum pressure drop bar[psi]

cont. 200[2900]

200[2900]

200[2900]

200[2900]

180[2610]

160[2320]

int.1) 240[3480]

240[3480]

240[3480]

240[3480]

210[3050]

180[2610]

peak2) 280[4060]

280[4060]

280[4060]

280[4060]

240[3480]

210[3050]

Maximum oil flow l/min[USgal/min]

cont. 100[26.4]

125[33.0]

125[33.0]

125[33.0]

125[33.0]

125[33.0]

int.1) 125[33.0]

150[39.6]

150[39.6]

150[39.6]

150[39.6]

150[39.6]

Maximum startingpressure with unloadedshaft

bar[psi]

10[145]

10[145]

10[145]

10[145]

10[145]

10[145]

Minimum starting torque at maximum pressuredrop cont.Nm [lbf·in]

340[3010]

430[3810]

530[4690]

740[6550]

840[7430]

950[8410]

at maximum pressuredrop int.1)

Nm [lbf·in]

410[3630]

520[4600]

630[5580]

890[7880]

970[8590]

1060[9380]

1) Intermittent operation: the permissible values may occur for max. 10% of every minute.2) Peak load: the permissible values may occur for max. 1% of every minute.

For maximum permissible combination of flow and pressure, see function diagram for actual motor.

Type Maximum inlet pressure Maximum return pressurewith drain line

OMT, OMTW, OMTS, OMTFX, OMT FL, OMT FH

bar[psi]

cont. 210[3050]

140[2030]

bar[psi]

int.1) 250[3630]

175[2540]

bar[psi]

peak2) 300[4350]

210[3050]

1) Intermittent operation: the permissible values may occur for maximum 10% of every minute.2) Peak load: The permissible values may occur for maximum 1% of every minute.

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 11

Page 12: OMT/OMV Orbital Motors Technical Information

Brake motors

Type Maximum presssure indrain line3)

Holding torque4) Brake-release pressure3) Maximum pressure inbrake line

OMT FX, OMT FL 5 bar[70 psi]

1200 Nm[10620 lbf·in]

12 bar[170 psi]

30 bar[440 psi]

OMT FH 5 bar[70 psi]

1200 Nm[10620 lbf·in]

30 bar[440 psi]

280 bar[4060 psi]

3) Brake motors must always have a drain line. The brake-release pressure is the difference between the pressure in the brake line and the pressurein the drain line.4) For the supply of motors with holding torques higher than those stated, please contact the Danfoss sales organization.

For maximum permissible combination of flow and pressure, see function diagram for actual motor.

Pressure drop in motor

151-1409.10

0 20 40 60 80 100 120 140 l/min

0 4 8 12 16 20 24 28 32 36 US gal/min

200

150

100

50

0

16

14

12

10

8

6

4

2

0

psi bar

∆ p ∆ p

Q

Q

The curve applies to an unloaded motor shaft and an oil viscosity of 35 mm2/s [165 SUS]

Oil flow in drain line

Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi]

Pressure drop Viscosity Oil flow in drain line

bar [psi] mm2/s [SUS] l/min [US gal/min]

140 [2030] 20 [100] 2.5 [0.66]

35 [165] 1.5 [0.40]

210 [3050] 20 [100] 5.0 [1.32]

35 [165] 3.0 [0.79]

Technical InformationOMT and OMV Orbital Motors

OMT

12 | © Danfoss | September 2021 BC152886483862en-000801

Page 13: OMT/OMV Orbital Motors Technical Information

Direction of shaft rotation

B BA A

151-1050.10

Permissible shaft loads for OMT

Mounting flange:

Standard

Shaft:

All shaft types

Mounting flange:

Wheel

Shaft:

All shaft types

The output shaft runs in tapered roller bearings that permit high axial and radial forces.

The permissible radial load on the shaft is shown for an axial load of 0 N as a function of the distance fromthe mounting flange to the point of load application.

The curve is based on B10 bearing life (2000 hours or 12,000,000 shaft revolutions at 100 min-1) at ratedoutput torque, when mineral-based hydraulic oil with a sufficient content of anti-wear additives, is used.

For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.

The dash curve shows maximum radial shaft load. Any shaft load exceeding the values shown in thecurve will involve a risk of breakage.

Bearing life calculations can be made using the explanation and formula provided in the chapter "Bearingdimensioning in the technical information General Orbital Motors, BC152886483554.

Mounting flange:

Brake-wheel

Shaft:

All shaft types

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 13

Page 14: OMT/OMV Orbital Motors Technical Information

Mounting flange:

Brake-standard

Shaft:

All shaft types

The output shaft runs in tapered roller bearings that permit high axial and radial forces.

The permissible radial load on the shaft is shown for an axial load of 0 N as a function of the distance fromthe mounting flange to the point of load application.

The curve is based on B10 bearing life (2000 hours or 12,000,000 shaft revolutions at 100 min-1) at ratedoutput torque, when mineral-based hydraulic oil with a sufficient content of anti-wear additives, is used.

For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.

The dash curve shows max. radial shaft load. Any shaft load exceeding the values shown in the curve willinvolve a risk of breakage.

Bearing life calculations can be made using the explanation and formula provided in the chapter Bearingdimensioning in the technical information General Orbital Motors, BC152886483554.

OMT Function diagrams

Continuous range

Intermittent range (maximum 10% operation every minute)

OMT 160lbf• in Nm

5500

5000

4500

4000

3500

3000

2500

2000

1500

1000

500

0

600

550

500

450

400

350

300

250

200

150

100

50

0

0 100 200 300 400 500 600 700 800

151-493.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

Q=1

25 l/

min

[33.

0 U

S ga

l/min

]

40 l/

min

[10.

6 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 40 bar

2900 psi

160 bar2320 psi

∆ p=240 bar3480 psi

580 psi

1740 psi

120 bar

1160 psi

80 barN=5kW

10kW

N=35kW

85%

80%

30hp

35hp

15hp10hp

5hp

η t =86%

η t =70%

25hp

15kW

30kW

20kW

25kW

20hp

Technical InformationOMT and OMV Orbital Motors

OMT

14 | © Danfoss | September 2021 BC152886483862en-000801

Page 15: OMT/OMV Orbital Motors Technical Information

OMT 200lbf• in Nm

6500

6000

5500

5000

4500

4000

3500

3000

2500

2000

1500

1000

500

0

750

700

650

600

550

500

450

400

350

300

250

200

150

100

50

0

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750

151-494.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

40 l/

min

[10.

6 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 40 bar

2900 psi

160 bar2320 psi

∆ p=240 bar3480 psi

580 psi

1740 psi120 bar

1160 psi80 bar

N=5kW

10kW

N=40kW

85%

80%

30hp

35hp

15hp

10hp

5hp

η t =88%

87%

η t =70%

25hp15kW

30kW

40hp

35kW

20kW

25kW

20hp

OMT 250lbf• in Nm

9000

8000

7000

6000

5000

4000

3000

2000

1000

0

900

800

700

600

500

400

300

200

100

0

0 50 100 150 200 250 300 350 400 450 500 550 600

151-495.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

125

l/min

[33.

0 U

S ga

l/min

]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]Q

=150

l/m

in[3

9.6

US

gal/m

in]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]

40 l/

min

[10.

6 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 40 bar

2900 psi

160 bar2320 psi

∆ p=240 bar3480 psi

580 psi

1740 psi120 bar

1160 psi80 barN=5kW

10kW

N=40kW

85%

80%

30hp

40hp35hp

15hp

10hp

5hp

η t =87%

η t =70%

25hp15kW

35kW30kW

20kW

25kW

20hp

Technical InformationOMT and OMV Orbital Motors

OMT

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OMT 315lbf• in Nm

11000

10000

9000

8000

7000

6000

5000

4000

3000

2000

1000

0

1200

1100

1000

900

800

700

600

500

400

300

200

100

0

0 50 100 150 200 250 300 350 400 450 500

151-869.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

125

l/min

[33.

0 U

S ga

l/min

]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]

40 l/

min

[10.

6 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 40 bar

2900 psi

160 bar2320 psi

∆ p=240 bar3480 psi

580 psi

1740 psi

120 bar

1160 psi

80 barN=5kW

10kW

N=40kW

85% 80%

87%

30hp

40hp

35hp15hp

10hp

5hp

η t =88%

η t =70%

25hp15kW

35kW

30kW

20kW

25kW

20hp

OMT 400lbf• in Nm

12000

11000

10000

9000

8000

7000

6000

5000

4000

3000

2000

1000

0

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

0

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375

151-1058.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

40 l/

min

[10.

6 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

∆ p= 30 bar

150 bar2180 psi

∆ p=210 bar3050 psi

180 bar2610 psi

440 psi

870 psi60 bar

1300 psi90 bar

1740 psi120 bar

N=2.5kW

N=30kW

30hp

2.5hp

η t =89%

80%

87%

85%

η t =70%

25hp

25kW

20hp

20kW

15hp

15kW10hp 10kW

5hp 5kW

Technical InformationOMT and OMV Orbital Motors

OMT

16 | © Danfoss | September 2021 BC152886483862en-000801

Page 17: OMT/OMV Orbital Motors Technical Information

OMT 500lbf• in Nm

12500

10000

7500

5000

2500

0

1500

1250

1000

750

500

250

0

0 25 50 75 100 125 150 175 200 225 250 275 300

151-1116.10

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

Q=1

50 l/

min

[39.

6 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

20 l/

min

[5.3

US

gal/m

in]

40 l/

min

[10.

6 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

80 l/

min

[21.

1 U

S ga

l/min

]

60 l/

min

[15.

9 U

S ga

l/min

]

∆ p= 30 bar

140 bar2030 psi

∆ p=180 bar2610 psi

160 bar2320 psi

440 psi

870 psi60 bar

1300 psi90 bar

1740 psi120 bar

N=2.5kW

N=30kW30hp

2.5hp

η t =90%

87%85%

η t =80%

25hp

25kW

20hp

20kW

15hp

15kW10hp 10kW

5hp

5kW

Function diagram use

Explanation of function diagram use, basis and conditions, see Speed, torque, and output on page 7.

Intermittent pressure drop and oil flow must not occur simultaneously.

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 17

Page 18: OMT/OMV Orbital Motors Technical Information

Shaft version

82 [3.23]

26 [1.02]9.5 [0.374]

M12

12.000 [0.4724]11.957 [0.4707]

5.5 [0.217]4.5 [0.177]

3/8 -16 UNC

9.545 [0.3758]9.525 [0.3750]

57.5 [2.264]56.9 [2.240]

11.5 [0.453]9.3 [0.366]

70.5 [2.776]70.0 [2.756]

82.2 [3.236]81.8 [3.220]

min. 20 [0.78]

R0.5 [0.020]

R0.5 [0.020]

151-1032.10

Ø40

.018

[1.5

755]

Ø40

.002

[1.5

749]

43.0

0 [1

.693

]42

.71

[1.6

81]

Ø38

.10

[1.5

00]

Ø38

.05

[1.4

98]

42.4

0 [1

.669

]42

.14

[1.6

59]

Ø45

[1.7

7]Ø

45 [1

.77]

45˚

45˚

D

C

A-A

A-A

A

A

A

A

A

B

A Cylindrical 40 mm shaft

C Parallel key

A12 × 8 × 70

DIN 6885

Keyway deviates from standard

B Cylindrical 1.5 in shaft

D Parallel key

3/8 × 3/8 × 21/4 in

B.S. 46

Keyway deviates from standard

Technical InformationOMT and OMV Orbital Motors

OMT

18 | © Danfoss | September 2021 BC152886483862en-000801

Page 19: OMT/OMV Orbital Motors Technical Information

82.2 [3.236]81.8 [3.220]

82 [3.23]

26 [1.02]

9.5 [0.374]

M12

58 [2.28]56 [2.20]

58 [2.28]56 [2.20]

min. 20 [0.78]

3/8 -16 UNC

R0.5 [0.020]

R0.5 [0.020]

151-1916.10

Ø45

[1.7

7]

Ø38

.100

[1.5

000]

Ø38

.075

[1.4

990]

Ø38

.100

[1.5

000]

Ø38

.075

[1.4

990]

Ø45

[1.7

7]

45˚

45˚

D

C

A-A

A-A

A

A

A

A

C Involute splined shaft

ANS B92.1 - 1970 standard

Flat root side fit

Pitch 12/24

Teeth 17

Major diameter 1.50 in

Pressure angle 30°

D US version

Involute splined shaft

ANS B92.1 - 1970 standard

Flat root side fit

Pitch 12/24

Teeth 17

Major diameter 1.50 in

Pressure angle 30°

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 19

Page 20: OMT/OMV Orbital Motors Technical Information

102 [4.02]

80.8 [3.181]80.0 [3.150]

4.5 [0.177]

59.00 [2.323]57.80 [2.276]

32.1 [1.264]31.5 [1.240]

16 [0.63]

34 [1.34] 4 [0.16]12.000 [0.4724]11.957 [0.4707]54 [2.13] 22 [0.87]

82 [3.23]

11.150 [0.4390]11.130 [0.4382]

R5 [0.20]

R0.5 [0.020] R6.7 [0.267]

7 [0.28]

77 [3.03]75 [2.95]

38.25 [1.506]37.75 [1.486]

28.14 [1.108]**27.89 [1.098]

8.64 [0.340]

8.53 [0.336]

151-1917.10

29.5

[1.1

61]

29.3

[1.1

54]

Ø34

.85

[1.3

72]

Ø34

.73

[1.3

67]

5.71

[0.2

25]

5.61

[0.2

21]

Ø4

[0.1

6]

Ø6

[0.2

4]

Ø7

[0.2

8]M

30x2

24.1

5 [0

.951

]23

.95

[0.9

43]

Ø56

[2.2

0]

Ø45

[1.7

7]Ø

45 [1

.77]

Ø45

[1.7

7]

45˚

60˚

H

E

I K L

J M

F

G

A-A A-A

A-A

A

A

A

A

A

A

E Tapered 45 mm shaft (ISO/R775)

I DIN 937

Across flats: 46 mm

Tightening torque: 500 ± 30 Nm [4430±270 lbf·in]

H Taper 1:10

J Parallel key

B12 × 8 × 28

DIN 6885

Keyway deviates from standard

F Tapered 1.75 in shaft

K Cone 1:8

SAE J501

L 1 1/4 - 18 UNEF

Across flats 2 3/16 in

Tightening torque: 500 ±10 Nm (4425 ±90lbf·in)

M Parallel key

7/16 × 7/16 × 1 1/4

B.S. 46

Keyway deviates from standard

G P.t.o. shaft

DIN 9611 Form 1 (ISO/R500without pin hole)

** Deviates from DIN 9611

Technical InformationOMT and OMV Orbital Motors

OMT

20 | © Danfoss | September 2021 BC152886483862en-000801

Page 21: OMT/OMV Orbital Motors Technical Information

Port thread versions

A

B

C D

G H

E F

151-1977.11

min

. 13

[0.5

1]

min

. 12

[0.4

7]

min

. 18

[0.6

7]

min

. 19

[0.7

5]

Ø41.5 [1.634]Ø41.0 [1.614]

A G main ports

E ISO 228/1 - G3/4

O-ring boss port

B UN main ports

F 1 1/16 - 12 UN

C G drain port

G G: ISO 228/1 - G1/4

O-ring boss port

D UNF drain port

H 9/16 - 18 UNF

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 21

Page 22: OMT/OMV Orbital Motors Technical Information

Dimensions

OMT standard flange - European version

Ø123.8 [4.874]Ø122.2 [4.811]

Ø125.000 [4.9213]Ø124.937 [4.9188]

Ø73 [2.87]Ø71 [2.80]

18 [0

.71]

23.6

[0.9

29]

22.4

[0.8

82]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

R1.6

[0.0

63]

R12

[0.4

7]Ø

14 [0

.55]

Ø160.4

[6.31

5]

Ø159.6

[6.28

3]

31 [1

.22]

60 [2

.36]

32 [1

.26] 9

[0.3

5] 22.4

[0.8

82]

max

. 69

[2.7

2]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

max. 67 [2.64]

72 [2.83]64 [2.52]

max. 71 [2.80]

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

max. 143 [5.63]

max

. 143

[5.6

3]

151-889.11

100 [3.94]

max. 128 [5.04]

C

E

D

L L 1

L 2

L 3

C: Drain connection, G 1⁄4; 12 mm [0.47 in] deep

D: M10; 10 mm [0.39 in] deep

E: G 3⁄4; 17 mm [0.67 in] deep

Technical InformationOMT and OMV Orbital Motors

OMT

22 | © Danfoss | September 2021 BC152886483862en-000801

Page 23: OMT/OMV Orbital Motors Technical Information

Type OMT 160 OMT 200 OMT 250 OMT 315 OMT 400 OMT 500

LMax. mm 192 197 203 213 223 237

[in] [7.56] [7.76] [7.99] [8.39] [8.78] [9.33]

L1* mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 140 145 151 161 171 185

[in] [5.51] [5.71] [5.94] [6.34] [6.73] [7.28]

Weight kg 20.0 20.5 21.0 22.0 23.0 24.0

[lb] [44.1] [45.2] [46.3] [48.5] [50.7] [52.9]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft All shafts except P.t.o. shaft P.t.o. shaft

L3 mm 82 102

[in] [3.23] [4.02]

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 23

Page 24: OMT/OMV Orbital Motors Technical Information

OMT standard flange - US version

Ø127.00 [5.000]Ø126.95 [4.998]

Ø123.8 [4.874]Ø122.2 [4.811]

Ø86.5 [3.406]Ø85.5 [3.366]

73.7 [2.902]71.5 [2.815]

64.5 [2.539]63.5 [2.500]

33.1

5 [1

.305

]30

.85

[1.2

15]

18 [0

.71]

23.6

[0.9

29]

22.4

[0.8

82]

60 [2

.36]

R0.8

[0.0

03]

max

. 69

[2.7

2]

Ø162.3

[6.39

0]

Ø161.5

[6.35

8]

9 [0

.35] 22

.4 [0

.882

]

31 [1

.22]

max. 75 [2.95]max. 67 [2.64]

R12.

5 [0

.492

14 [0

.55]

max

. 143

[5.6

3]

151-889.11.22

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

100 [3.94]

max. 128 [5.04]

C

D

L L 1

L 2L 3

max. 143 [5.63]

C: Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D: 1 1⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

Technical InformationOMT and OMV Orbital Motors

OMT

24 | © Danfoss | September 2021 BC152886483862en-000801

Page 25: OMT/OMV Orbital Motors Technical Information

Type OMT 160 OMT 200 OMT 250 OMT 315 OMT 400 OMT 500

LMax. mm 192 197 203 213 223 237

[in] [7.56] [7.76] [7.99] [8.39] [8.78] [9.33]

L1* mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 140 145 151 161 171 185

[in] [5.51] [5.71] [5.94] [6.34] [6.73] [7.28]

Weight kg 20.0 20.5 21.0 22.0 23.0 24.0

[lb] [44.1] [45.2] [46.3] [48.5] [50.7] [52.9]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft Cyl. 1.5 in, Splined 1.5 in Tapered 1.75 in

L3 mm 82 80.4

[in] [3.23] [3.17]

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 25

Page 26: OMT/OMV Orbital Motors Technical Information

OMT Wheel - European version

Ø126.25 [4.970]Ø123.75 [4.872]

Ø123.8 [4.874]Ø122.2 [4.811]

Ø172.000 [6.7717]Ø171.937 [6.7692]

Ø160.000 [6.2992]Ø159.937 [6.2967]

Ø73 [2.87]Ø71 [2.80]

2 [0

.08]

x45˚

4 [0

.16]

18 [0

.71]

7 [0

.28]

23.6

[0.9

29]

22.4

[0.8

82]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

99 [3

.90]

78.2

[3.0

79]

82 [3

.23]

R1.2

[0.0

47]

R1.2

[0.0

47]

45˚

Ø200.4

[7.89

0]

Ø199.6

[7.85

8]

8 [0

.31]

90.3

[3.5

55]

98.2

[3.8

66]

max

. 69

[2.7

2]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

max. 67 [2.64]

75 [2.95]

max. 71 [2.80]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

R16

[0.6

3]Ø

18 [0

.71]

max

. 180

[7.0

9]

max. 180 [7.09]

151-897.12

100 [3.94]

max. 128 [5.04]

C

E

D

L

L 1L 2

C: Drain connection, G 1⁄4; 12 mm [0.47 in] deep

D: M10; 10 mm [0.39 in] deep

E: G 3⁄4; 17 mm [0.67 in] deep

Technical InformationOMT and OMV Orbital Motors

OMT

26 | © Danfoss | September 2021 BC152886483862en-000801

Page 27: OMT/OMV Orbital Motors Technical Information

Type OMTW 160 OMTW 200 OMTW 250 OMTW 315 OMTW 400 OMTW 500

LMax. mm 126 131 137 146 157 171

[in] [4.96] [5.16] [5.39] [5.75] [6.18] [6.73]

L1* mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 73 78 84 94 104 118

[in] [2.87] [3.07] [3.31] [3.70] [4.09] [4.65]

Weight kg 22.0 22.5 23.0 24.0 25.0 26.0

[lb] [48.5] [49.6] [50.7] [52.9] [55.1] [57.3]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 27

Page 28: OMT/OMV Orbital Motors Technical Information

OMT Wheel - US version

Ø160.000 [6.2992]Ø159.937 [6.2967]

Ø126.25 [4.970]Ø123.75 [4.872]

Ø123.8 [4.874]Ø122.2 [4.811]

Ø73 [2.87]Ø71 [2.80]

80.8

[3.1

81]

80.0

[3.1

50]

2 [0

.08]

x45˚

18 [0

.71]

3.5

[0.1

38]

23.6

[0.9

29]

22.4

[0.8

82]

102.

1 [4

.020

]99

.1 [3

.902

]

98.2

[3.8

66]

78.6

[3.0

94]

77.5

[3.0

51]

45˚

R1.2

[0.0

47]

90.3

[3.5

55]

R1.2

[0.0

47]

max

. 69

[2.7

2]

Ø200.4

[7.89

0]

Ø199.6

[7.85

8]

7 [0

.28]

7 [0

.28]

max. 75 [2.95]

75 [2.95]

max. 67 [2.64]

R16

[0.6

3]Ø

18 [0

.71]

max. 180 [7.09]

max

. 180

[7.0

9]

151-897.11.22

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

100 [3.94]

max. 128 [5.04]

Ø172.000 [6.7717]Ø171.937 [6.7692]

C

D

L

L 1L 2

C: Drain connection, 9⁄16 - 18 UNF; 13 mm [0.51 in] deep, O-ring boss port

D: 1 1⁄16 - 12 UN; 19 mm [0.75 in] deep, O-ring boss port

*

* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMT

28 | © Danfoss | September 2021 BC152886483862en-000801

Page 29: OMT/OMV Orbital Motors Technical Information

Type OMTW 160 OMTW 200 OMTW 250 OMTW 315 OMTW 400 OMTW 500

LMax. mm 126 131 137 146 157 171

[in] [4.96] [5.16] [5.39] [5.75] [6.18] [6.73]

L1 mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 73 78 84 94 104 118

[in] [2.87] [3.07] [3.31] [3.70] [4.09] [4.65]

Weight kg 22.0 22.5 23.0 24.0 25.0 26.0

[lb] [48.5] [49.6] [50.7] [52.9] [55.1] [57.3]

Type Lmax mm [in] L1* mm [in] L2 mm [in]

OMTW 160 123 [4.84] 16.5 [0.650] 73 [2.87]

OMTW 200 128 [5.04] 21.5 [0.846] 78 [3.07]

OMTW 250 134 [5.28] 27.8 [1.094] 84 [3.31]

OMTW 315 144 [5.67] 37.0 [1.457] 94 [3.70]

OMTW 400 154 [6.06] 47.5 [1.870] 104 [4.09]

OMTW 500 168 [6.61] 61.5 [2.421] 118 [4.65]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 29

Page 30: OMT/OMV Orbital Motors Technical Information

OMT Brake-wheel - European version

5x72

˚4x

90˚

10x3

23.3

[0.9

17]

22.7

[0.8

94]

11.1

[0.4

37]

10.9

[0.4

29]

13 [0

.51]

12 [0

.47]

13 [0

.51]

12 [0

.47]

Ø200.4 [7.890]

Ø199.6 [7.858]

max. 232 [9.13]

5.2

[0.2

05]

4.8

[0.1

89]

12.2

[0.4

80]

11.8

[0.4

65]

111.

4 [4

.386

]11

0.6

[4.3

54]

7.2

[0.2

83]

6.8

[0.2

68]

10.2

[0.4

02]

9.8

[0.3

86]

115.

4 [4

.543

]11

4.6

[4.5

12]

13.2

[0.5

20]

12.8

[0.5

04]

4.2

[0.1

65]

3.8

[0.1

50]

35 [1

.38]

67 [2

.64]

75 [2.95]

Ø201 [7.91]

Ø120.0 [4.724]Ø119.6 [4.709]

Ø76.0 [2.992]Ø75.8 [2.984]

Ø180.00 [7.087]Ø179.6 [7.074]

Ø95.8 [3.772]Ø95.6 [3.764]

71

[2.8

0]

Ø22

[0.8

7]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

Ø172.00 [6.772]Ø171.94 [6.769]

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

23.1 [0.909]22.9 [0.902]

Ø140.0 [5.512]Ø139.6 [5.496]

Ø100.0 [3.937]Ø99.6 [3.921]

151-1443.11

100 [3.94]128 [5.04]

H

G

I

C

F

E D

L m

ax. 1

L m

ax. 2

L 1

L 2

C: Brake-release port G 1/4; 12 mm [0.47 in] deep (BS/ISO 228/1)

D: Drain connection G 1/4; 12 mm [0.47 in] deep

E: G 3/4; 17 mm [0.67 in] deep

Technical InformationOMT and OMV Orbital Motors

OMT

30 | © Danfoss | September 2021 BC152886483862en-000801

Page 31: OMT/OMV Orbital Motors Technical Information

F: 4 × M12; 27 mm [1.06 in] deep

G: 10 × M12

H: Wheel bolts 5 × M14 × 1.5

I: M10; 10 mm [0.39 in] deep

Type OMT 160 FX OMT 200 FX OMT 250 FX OMT 315 FX OMT 400 FX OMT 500 FX

LMax. 1 mm 225 230 236 245 256 270

[in] [8.86] [9.06] [9.29] [9.65] [10.08] [10.63]

LMax. 2 mm 228 234 240 249 260 274

[in] [8.98] [9.21] [9.45] [9.80] [10.24] [10.79]

L1* mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 62 67 74 83 93 107

[in] [2.45] [2.65] [2.89] [3.26] [3.67] [4.22]

Weight kg 31.0 31.5 32.0 33.0 34.0 35.0

[lb] [68.3] [69.4] [70.5] [72.8] [75.0] [77.2]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 31

Page 32: OMT/OMV Orbital Motors Technical Information

OMT Brake-standard - European version

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

12 [0.47]

100 [3.94]

max. 128 [5.04]

Ø160.4 [6.315]Ø159.6 [6.283]

max. 147.3 [5.799]

max

. 147

.3 [5

.799

]

max. Ø187 [7.36]

max. 171 [6.73]

82 [3

.23]

32 [1

.26]

60 [2

.36]

104

[4.0

9]

12 [0

.47]

Ø14

[0.5

5]

31.5

[1.2

40]

max

. 170

[6.6

9]

18 [0

.71]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

13.0

[0.5

12]

12.0

[0.4

72]

23.6

[0.9

29]

22.4

[0.8

82]

13.0

[0.5

12]

12.0

[0.4

72]

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

151-1453.10

max. 71 [2.80]max. 67 [2.64]

90.5 [3.563]

85.8 [3.378]

R1.6 [0.063]

Ø125.000 [4.9213]Ø124.937 [4.9188]

Ø123.5 [4.862]Ø122.5 [4.823]

Ø86.2 [3.406]Ø85.5 [3.366]

C

FD

E

LL 1

L 2

C: G 3/4; 17 mm [0.67 in] deep (BS/ISO 228/1)

D: Drain connection G 3/8; 14 mm [0.55 in] deep

E: Brake-release port G 1/4; 12 mm [0.47 in] deep

Technical InformationOMT and OMV Orbital Motors

OMT

32 | © Danfoss | September 2021 BC152886483862en-000801

Page 33: OMT/OMV Orbital Motors Technical Information

F: M10; 10 mm [0.39 in] deep

Type OMT 160FL/FH

OMT 200FL/FH

OMT 250FL/FH

OMT 315FL/FH

OMT 400FL/FH

OMT 500FL/FH

LMax. mm 230 233 241 250 261 275

[in] [9.06] [9.17] [9.49] [9.84] [10.28] [10.83]

L1* mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 178 183 189 199 209 223

[in] [7.01] [7.20] [7.44] [7.83] [8.23] [8.78]

Weight kg 24.5 25.0 25.5 26.5 27.5 28.5

[lb] [54.0] [55.1] [56.2] [58.4] [60.6] [62.8]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

OMT short - European version

Ø125.000 [4.9213]Ø124.937 [4.9188]

Ø14 [0.55]

max. Ø186 [7.32]

42 [1.65] 50 [1.97]

Ø6 [0.24]

Ø6 [0.24]

Ø160.4 [6.315]Ø159.6 [6.283]

28 [1

.10]

max

. 69

[2.7

2]

22 [0

.87]

1 [0

.04]

x45˚

23.6

[0.9

26]

22.4

[0.8

82]

13 [0

.512

]12

[0.4

72]

13 [0

.512

]12

[0.4

72]

13 [0

.512

]12

[0.4

72]

13 [0

.512

]12

[0.4

72]

R1 [0

.04]

18 [0

.71]

31 [1

.22]

max. 71 [2.80]max. 67 [2.64]

8 [0.31]

8 [0

.31]

28 [1.10]

151-898.11

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

22.1 [0.870]21.1 [0.831]

20.3 [0.799]19.7 [0.776]

20.3 [0.799]19.7 [0.776]

100 [3.94]

max. 128 [5.04]

C

E

D

L

L 1L 2

C: Drain connection G 1⁄4; 12 mm [0.47 in] deep

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 33

Page 34: OMT/OMV Orbital Motors Technical Information

D: M10; 10 mm [0.39 in] deep E: G 3⁄4; 17 mm [0.67 in] deep

*

Type OMTS 160 OMTS 200 OMTS 250 OMTS 315 OMTS 400 OMTS 500

LMax. mm 146 151 157 166 177 191

[in] [5.75] [5.94] [6.18] [6.54] [6.97] [7.52]

L1 mm 16.5 21.5 27.8 37.0 47.5 61.5

[in] [0.650] [0.846] [1.094] [1.457] [1.870] [2.421]

L2 mm 96 101 107 116 127 142

[in] [3.78] [3.98] [4.21] [4.57] [5.00] [5.59]

Weight kg

[lb]

Type Lmax L1 L2

OMTS 500

OMTS

Installation

The cardan shaft of the OMTS motor acts as an “output shaft”. Because of the movement of the shaft, noseal can be fitted at the shaft output.

Internal oil leakage from the motor will therefore flow into the attached component.

During start and operation it is important that the spline connection and the bearings in the attachedcomponent receive oil and are adequately lubricated. To ensure that the spline connection receivessufficient oil, a conical sealing ring between the shaft of the attached component and the motorintermediate plate is recommended. This method is used in the OMT.

The conical sealing ring (code. no. 633B9022) is supplied with the motor.

To ensure that oil runs to the bearings and other parts of the attached component, the stop plate musthave a hole in it (see fig. below).

We recommend an O-ring between motor and attached component. The O-ring (code no. 151B1040) issupplied with the motor. If motor and attached component have been separated, remember to refillbefore starting up. Fill the oil through the drain connection.

* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMT

34 | © Danfoss | September 2021 BC152886483862en-000801

Page 35: OMT/OMV Orbital Motors Technical Information

Attached component dimensions

OMTS dimensions of the attached component in millimeter [inches]

2.35 [0.093]2.25 [0.089]

0.25 [0.010]

0.1˚

2.5 [0.098]1.5 [0.059]

25.5 [1.004]24.5 [0.965]

46.3 [1.823]45.7 [1.799]

69.4 [2.732]68.6 [2.701]

11.4 [0.449]11.0 [0.433]

8.2 [0.323]7.8 [0.307]

18.5 [0.728]17.5 [0.689]

30 [1.181]29 [1.142]

151-452.10

min. 5 [0.2]

min

. Ø6

[0.2

4]

Ø12

5.06

3 [4

.923

7]Ø

125.

000

[4.9

212]

min

. Ø55

[2.1

7]

Ø13

3.0

[5.2

36]

Ø13

2.6

[5.2

20]

Ø51

.5 [2

.028

50.5

[1.9

88]

39.5

[1.5

55]

38.5

[1.5

16]

Ø88

.5 [3

.484

87.5

[3.4

45]

Ø53

.5 [2

.106

53.5

[2.0

98]

Ø63

.5 [2

.500

62.5

[2.4

61]

CA

B

ED

F

KK

K

GH

A O-ring: 125 × 3 mm B External drain channel

C Drain connection

G 1⁄4; 12 mm [0.47 in] deep

D Conical seal ring

E Internal drain channel F M12; min. 18 mm [0.71 in] deep

G Oil circulation hole H Hardened stop plate

Attached component internal splines

The attached component must have internal splines corresponding to the external splines on the motorcardan shaft (see the following drawing).

Material:

Case hardening steel with a tensile strength corresponding at least to 20 MoCr4 (900 N/mm2) or SAE8620.

Technical InformationOMT and OMV Orbital Motors

OMT

© Danfoss | September 2021 BC152886483862en-000801 | 35

Page 36: OMT/OMV Orbital Motors Technical Information

Hardening specification:

• On the surface: HV = 750 ± 50• 0.7 ± 0.2 mm under the surface: HV = 560

Internal involute spline data; Standard ANS B92.1-1970, class 5 (corrected m · X = 1; m = 2.1166)

Flat root side fit mm in

Number of teeth z 16 16

Pitch DP 12/24 12/24

Pressure angle 30° 30°

Pitch dia. D 33.8656 1.3333

Major dia. Dri 38.40+0.4 1.51180

+0.0157

Form dia. (min.) Dfi 37.6 1.4803

Minor dia. Di 32.1500+ 0.04 1.26570

+ 0.00157

Space width (circular) Lo 4.516±0.037 0.1777±0.0014

Tooth thickness (circular) So 2.170 0.0854

Fillet radius Rmin. 0.5 0.02

Max. measurement between pins* l 26.90+ 0.1 1.0590

+0.004

Pin dia. d 4.834±0.001 0.1903±0.00004

* Finished dimensions (when hardened).

dl

D

Dri

Di Dfi

So

Lo

Rmin

151-455.10

Motor or attached component drain connection

Use the drain line when pressure in the return line exceeds the permissible pressure on the shaft seal ofthe attached component.

Connect the drain line either at the:• Motor drain connection• Drain connection of the attached component

If a drain line is fitted to the attached component, it must be possible for oil to flow freely between motorand attached component.

The drain line must be led to the tank in such a way that there is no risk of the motor and attachedcomponent being drained of oil when at rest.

The maximum pressure in the drain line is limited by the attached component and its shaft seal.

Technical InformationOMT and OMV Orbital Motors

OMT

36 | © Danfoss | September 2021 BC152886483862en-000801

Page 37: OMT/OMV Orbital Motors Technical Information

This section shows the different versions/configuration codes and the ordering numbers.• Section OMT technical data, specify the technical data for OMT for each shaft type.

• In section OMT function diagrams, the diagram for each motor size is shown.

• See OMT dimensions for outer main dimensions for the different OMT motor types.

Technical InformationOMT and OMV Orbital Motors

OMT versions and code numbers

© Danfoss | September 2021 BC152886483862en-000801 | 37

Page 38: OMT/OMV Orbital Motors Technical Information

This section shows the different versions/configuration codes and the ordering numbers.• Section OMV technical data on page 40, specify the technical data for OMV for each shaft type.

• In section OMV function diagrams on page 45, the diagram for each motor size is shown.

• See OMV dimensions on page 53 for outer main dimensions for the different OMV motor types.

OMV versions and code numbers

OMV standard motors

Mounting flange: Standard 4 hole flange

Spigot diameter Ø160 mm [6.30 in]

Bolt circlediameter

Ø200 mm [7.89 in]

Shaft Main Port size Drain Port size Check valve Europeanversion

US version Main typedesignation

Conf. code

Cyl. Ø50 mm G 1 G 1/4 Yes Yes - OMV A1

Splined 2.125 in G 1 G 1/4 Yes Yes - OMV A2

Tapered 60 mm G 1 G 1/4 Yes Yes - OMV A3

Cyl. 2.25 in 1 5/16-12 UN 9/16-18 UNF Yes - Yes OMV A4

Splined 2.125 in 1 5/16-12 UN 9/16-18 UNF Yes - Yes OMV A5

Tapered 2.25 in 1 5/16-12 UN 9/16-18 UNF Yes - Yes OMV A6

Code numbers OMV Standard 4 hole flange

Conf. code Displacement

315 400 500 630 800

A1 151B3100 151B3101 151B3102 151B3103 151B3104

A2 151B3105 151B3106 151B3107 151B3108 151B3109

A3 151B3110 151B3111 151B3112 151B3113 151B3114

A4 151B2150 151B2151 151B2152 151B2153 151B2154

A5 151B2155 151B2156 151B2157 151B2158 151B2159

A6 151B2160 151B2161 151B2162 151B2163 151B2164

Mounting flange: OMV SAE-C flange

Spigot diameter Ø127 mm [5.00 in]

Bolt circle diameter Ø161.9 mm [6.37 in]

Shaft Main Port size Drain Port size European version US version Check valve Main type designation Conf. code

Cyl. 2.25 in 1 5/16-12 UN 9/16-18 UNF - Yes Yes OMV B1

Splined 2.125 in 1 5/16-12 UN 9/16-18 UNF - Yes Yes OMV B2

Code numbers OMV - SAE-C flange

Conf. code Displacement

315 400 500 630 800

B1 151B2183 151B2184 151B2185 151B2186 151B2187

B2 151B2188 151B2189 151B2190 151B2191 151B2192

Technical InformationOMT and OMV Orbital Motors

OMV versions and code numbers

38 | © Danfoss | September 2021 BC152886483862en-000801

Page 39: OMT/OMV Orbital Motors Technical Information

Mounting flange: OMV Wheel

Spigot diameter Ø180 mm [7.09 in]

Bolt circlediameter

Ø224 mm [8.82 in]

Shaft Main Port size Drain Port size Check valve Europeanversion

US version Main typedesignation

Conf. code

Cyl. Ø50 mm G 1 G 1/4 Yes Yes - OMVW C1

Splined 2.125 in G 1 G 1/4 Yes Yes - OMVW C2

Tapered 2.25 in 1 5/16-12 UN 9/16-18 UNF Yes - Yes OMVW C3

Code numbers OMVW

Conf. code Displacement

315 400 500 630 800

C1 151B3115 151B3116 151B3117 151B3118 151B3119

C2 151B3120 151B3121 151B3122 151B3123 151B3124

C3 151B2170 151B2171 151B2172 151B2173 151B2174

Mounting flange: OMV Short

Spigot diameter Ø140 mm [5.51 in]

Bolt circlediameter

Ø180 mm [7.09 in]

Shaft Main Port size Drain Port size Check valve Europeanversion

US version Main typedesignation

Conf. code

No output shaft G 1 G 1/4 Yes Yes - OMVS D1

Code numbers OMVS

Conf. code Displacement

315 400 500 630 800

D1 151B3125 151B3126 151B3127 151B3128 151B3129

OMV features

Features available (options):• Speed sensor• Motor with tacho connection• Viton shaft seal• Painted• Ultra short

Technical InformationOMT and OMV Orbital Motors

OMV versions and code numbers

© Danfoss | September 2021 BC152886483862en-000801 | 39

Page 40: OMT/OMV Orbital Motors Technical Information

OMV, OMVW, OMVS technical data

Type OMVOMVWOMVS

OMVOMVWOMVS

OMVOMVWOMVS

OMVOMVWOMVS

OMVOMVWOMVS

Motor size 315 400 500 630 800

Geometric displacement cm3 [in3] 314.5 [19.19] 400.9 [24.46] 499.6 [30.49] 629.1 [38.39] 801.8 [48.93]

Maximum speed min-1 [rpm] cont. 510 500 400 315 250

int1) 630 600 480 380 300

Maximum torque N•m [lbf•in] cont. 920 [8140] 1180 [10440] 1460 [12920] 1660 [14690] 1880 [16640]

int.1) 1110 [9820] 1410 [12480] 1760 [15580] 1940 [17170] 2110 [18680]

Maximum output kW [hp] cont. 42.5 [57.0] 53.5 [71.7] 53.5 [71.7] 48.0 [64.4] 42.5 [57.0]

int.1) 51.0 [68.4] 64.0 [85.8] 64.0 [85.8] 56.0 [75.1] 48.0 [64.4]

Maximum pressure drop bar [psi] cont. 200 [2900] 200 [2900] 200 [2900] 180 [2610] 160 [2320]

int.1) 240 [3480] 240 [3480] 240 [3480] 210 [3050] 180 [2610]

peak2) 280 [4060] 280 [4060] 280 [4060] 240 [3480] 210 [3050]

Maximum oil flow l/min[USgal/min]

cont. 160 [42.3] 200 [52.8] 200 [52.8] 200 [52.8] 200 [52.8]

int.1) 200 [52.8] 240 [63.4] 240 [63.4] 240 [63.4] 240 [63.4]

Maximum startingpressure with unloadedshaft

bar [psi] 8 [116] 8 [116] 8 [116] 8 [116] 8 [116]

Minimum startingtorque

at max. press. drop cont.N•m [lbf•in]

710 [6280] 910 [8050] 1130 [10000] 1330 [11770] 1510 [13360]

at max. press. drop int.1)

N•m [lbf•in]850 [7520] 1090 [9650] 1360 [12040] 1550 [13720] 1700 [15050]

1) Intermittent operation: the permissible values may occur for max. 10% of every minute.2) Peak load: The permissible values may occur for max. 1% of every minute.

Type Maximum inlet pressure Maximum return pressurewith drain line

OMVOMVWOMVS

bar [psi] cont. 210 [3050] 140 [2030]

bar [psi] int.1) 250 [3630] 175 [2540]

bar [psi] peak2) 300 [4350] 210 [3050]1) Intermittent operation: the permissible values may occur for max. 10% of every minute.2) Peak load: The permissible values may occur for max. 1% of every minute.

For maximum permissible combination of flow and pressure, see OMV function diagrams on page 45 foractual motor.

Maximum permissible shaft seal pressure

Motor with check valves and without use of drain connection

The pressure on the shaft seal never exceeds the pressure in the return line.

151-320.10

Technical InformationOMT and OMV Orbital Motors

OMV technical data

40 | © Danfoss | September 2021 BC152886483862en-000801

Page 41: OMT/OMV Orbital Motors Technical Information

Motor with check valves and with drain connection

The shaft seal pressure equals the pressure on the drain line.

Maximum return pressure without drain line or maximum pressure in the drain line

– – – – Intermittent operation: the permissible values may occur for max. 10% of every minute.

Continuous operation

151-1674.10

0 100 200 300 400 500 600 700 800 max.

1500

1200

900

600

300

0

100

90

80

70

60

50

40

30

20

10

0

psi bar

P P

min-1

(rpm)

Pressure drop in motor

151-1410.10

0 20 40 60 80 100 120 140 160 180 200 l/min

0 5 10 15 20 25 30 35 40 45 50 US gal/min

200

150

100

50

0

16

14

12

10

8

6

4

2

0

psi bar

∆ p ∆ p

Q

Q

The curve applies to an unloaded motor shaft and an oil viscosity of 35 mm2/s [165 SUS]

Oil flow in drain line

Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi]

Pressure drop Viscosity Oil flow in drain line

bar [psi] mm2/s [SUS] l/min [US gal/min]

140 [2030] 20 [100] 3.0 [0.79]

35 [165] 2.0 [0.53]

Technical InformationOMT and OMV Orbital Motors

OMV technical data

© Danfoss | September 2021 BC152886483862en-000801 | 41

Page 42: OMT/OMV Orbital Motors Technical Information

Maximum oil flow in the drain line at a return pressure less than 5-10 bar [75-150 psi] (continued)

Pressure drop Viscosity Oil flow in drain line

bar [psi] mm2/s [SUS] l/min [US gal/min]

210 [3050] 20 [100] 6.0 [1.59]

35 [165] 4.0 [1.06]

Direction of shaft rotation

Permissible shaft loads

Shaft load and bearing life time

The output shaft runs in tapered roller bearings that permit high axial and radial forces.

The permissible radial load on the shaft is shown for an axial load of 0 N as a function of the distance fromthe mounting flange to the point of load application.

The curve is based on B10 bearing life (2000 hours or 12,000,000 shaft revolutions at 100 min-1) at ratedoutput torque, when mineral-based hydraulic oil with a sufficient content of anti-wear additives, is used.

For 3,000,000 shaft revolutions or 500 hours – increase these shaft loads with 52%.

The dash curve shows maximum radial shaft load. Any shaft load exceeding the values shown in thecurve will involve a risk of breakage.

Bearing life calculations can be made using the explanation and formula provided in the chapter Bearingdimensioning in the technical information General Orbital Motors, BC152886483554.

OMV mounting flange: Standard

Shaft:

All shaft types

Technical InformationOMT and OMV Orbital Motors

OMV technical data

42 | © Danfoss | September 2021 BC152886483862en-000801

Page 43: OMT/OMV Orbital Motors Technical Information

151-1973.10

-80 -60 -40 -20 0 20 40 60 80 100 120 mm

-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 in

16000

14000

12000

10000

8000

6000

4000

2000

0

70000

60000

50000

40000

30000

20000

10000

0

lbf N

Prad. Prad.

Pmax.0

+- =15000 N=3372 lbf

OMV mounting flange: Wheel

Shaft:

All shaft types

151-1969.10

0 20 40 60 80 100 120 140 160 180 200 mm

0 1 2 3 4 5 6 7 in

16000

14000

12000

10000

8000

6000

4000

2000

0

70000

60000

50000

40000

30000

20000

10000

0

lbf N

Prad. Prad.

Pmax.0

+- =15000 N=3372 lbf

OMV mounting flange: SAE-C

Shaft:

All shaft types

Technical InformationOMT and OMV Orbital Motors

OMV technical data

© Danfoss | September 2021 BC152886483862en-000801 | 43

Page 44: OMT/OMV Orbital Motors Technical Information

151-1965.10

-80 -60 -40 -20 0 20 40 60 80 100 120 mm

-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 in

14000

12000

10000

8000

6000

4000

2000

0

60000

50000

40000

30000

20000

10000

0

lbf N

Prad. Prad.

Pmax.0

+- =10000 N=2248 lbfA

A

B

B

A: Cyl. 2.25 in shaft

B: Splined 2.125 in shaft

Technical InformationOMT and OMV Orbital Motors

OMV technical data

44 | © Danfoss | September 2021 BC152886483862en-000801

Page 45: OMT/OMV Orbital Motors Technical Information

Explanation of function diagram use, basis and conditions can be found in Speed, torque, and output onpage 7.

Continuous range

Intermittent range (max. 10% operation every minute)

Maximum permissible continuous/intermittent pressure drop for the actual shaft version can be found inOMV technical data on page 40.

Intermittent pressure drop and oil flow must not occur simultaneously.

OMV 315 function diagram

lbf• in N•m

11000

10000

9000

8000

7000

6000

5000

4000

3000

2000

1000

0

1200

1100

1000

900

800

700

600

500

400

300

200

100

0

0 50 100 150 200 250 300 350 400 450 500 550 600 650

151-870.11

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

25 l/

min

[6.6

US

gal/m

in]

Q=2

00 l/

min

[52.

8 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

50 l/

min

[13.

2 U

S ga

l/min

]

75 l/

min

[19.

8 U

S ga

l/min

]

160

l/min

[42.

2 U

S ga

l/min

]

150

l/min

[39.

6 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 35 bar

2900 psi170 bar

2540 psi

140 bar2030 psi

∆ p=240 bar3480 psi

510 psi

1520 psi105 bar

1020 psi

70 bar

N=5kW 10kW

N=50kW

85%

80%

30hp

40hp

50hp

10hp5hpη t =87%

η t =70%

40kW30kW

20kW20hp

OMV 400 function diagramOMV 400

lbf• in N•m

14000

12000

10000

8000

6000

4000

2000

0

1600

1400

1200

1000

800

600

400

200

0

0 50 100 150 200 250 300 350 400 450 500 550 600

151-871.11

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

25 l/

min

[6.6

US

gal/m

in]

Q=2

40 l/

min

[63.

4 U

S ga

l/min

]

50 l/

min

[13.

2 U

S ga

l/min

]

75 l/

min

[19.

8 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

150

l/min

[39.

6 U

S ga

l/min

]

175

l/min

[46.

2 U

S ga

l/min

]

200

l/min

[52.

8 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 35 bar

2900 psi

140 bar2030 psi

175 bar2540 psi

∆ p=240 bar3480 psi

510 psi

1520 psi105 bar

1020 psi70 bar

N=5kW10kW

N=50kW

87%

85%

80%

30hp 50hp

10hp

5hp

η t =88%

η t =70%

40hp

30kW

20kW

40kW

20hp

Technical InformationOMT and OMV Orbital Motors

OMV function diagrams

© Danfoss | September 2021 BC152886483862en-000801 | 45

Page 46: OMT/OMV Orbital Motors Technical Information

OMV 500 function diagramOMV 500

lbf• in N•m

16000

14000

12000

10000

8000

6000

4000

2000

0

1800

1600

1400

1200

1000

800

600

400

200

0

0 50 100 150 200 250 300 350 400 450 500

151-872.11

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

25 l/

min

[6.6

US

gal/m

in]

Q=2

40 l/

min

[63.

4 U

S ga

l/min

]

50 l/

min

[13.

2 U

S ga

l/min

]

75 l/

min

[19.

8 U

S ga

l/min

]

125

l/min

[33.

0 U

S ga

l/min

]

150

l/min

[39.

6 U

S ga

l/min

]

175

l/min

[46.

2 U

S ga

l/min

]

200

l/min

[52.

8 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

200 bar

∆ p= 35 bar

2900 psi

140 bar2030 psi

175 bar2540 psi

∆ p=240 bar3480 psi

510 psi

1520 psi105 bar

1020 psi70 bar

N=5kW10kW

N=60kW

87%

85%

80%

30hp

50hp60hp

10hp

5hp

η t =88%

η t =70%

40hp

50kW

30kW

20kW

40kW

20hp

OMV 630 function diagramOMV 630

lbf• in N•m

17500

15000

12500

10000

7500

5000

2500

0

2000

1750

1500

1250

1000

750

500

250

0

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400

151-879.11

min-1

(rpm)

Q=1

0 l/m

in[2

.6 U

S ga

l/min

]

Q=2

40 l/

min

[63.

4 U

S ga

l/min

]

75 l/

min

[19.

8 U

S ga

l/min

]

25 l/

min

[6.6

US

gal/m

in]

125

l/min

[33.

0 U

S ga

l/min

]

100

l/min

[26.

4 U

S ga

l/min

]

50 l/

min

[13.

2 U

S ga

l/min

]

150

l/min

[39.

6 U

S ga

l/min

]

175

l/min

[46.

2 U

S ga

l/min

]

200

l/min

[52.

8 U

S ga

l/min

]

150 bar

∆ p= 30 bar

2180 psi

120 bar1740 psi

180 bar2610 psi

∆ p=210 bar3050 psi

90 bar1300 psi

440 psi

870 psi60 bar

N=5kW

20kW

N=60kW

40hp

50hp

20hp

5hp

80%85%

87%

η t =70%

η t =89% 30hp

50kW40kW 60hp

10kW

30kW

10hp

Technical InformationOMT and OMV Orbital Motors

OMV function diagrams

46 | © Danfoss | September 2021 BC152886483862en-000801

Page 47: OMT/OMV Orbital Motors Technical Information

OMV 800 function diagram

P301 250.11

OMV 800

Q =

10

l/min

125

l/min

100

l/min

75 l/

min

50 l/

min

25 l/

min

150

l/min

175

l/min

200

l/min

Q =

240

l/m

in

2.6

US

gal/m

in

6.6

US

gal/m

in

13.2

US

gal/m

in

19.8

US

gal/m

in

26.4

US

gal/m

in

33.0

US

gal/m

in

39.6

US

gal/m

in

46.2

US

gal/m

in

52.8

US

gal/m

in

63.4

US

gal/m

in

p=180 bar

p=25bar

160 bar

130 bar

2610 psi

2320 psi

1890 psi

1450 psi

1090 psi

730 psi

360 psi

100 bar

75 bar

50 bar

0 25 50 75 100 125 150 175 200 225 250 275 300

20000

17500

15000

12500

10000

7500

5000

2500

0

2250

2000

1750

1500

1250

1000

750

500

250

0

N•mlbf•in

min-1

(rpm)

Technical InformationOMT and OMV Orbital Motors

OMV function diagrams

© Danfoss | September 2021 BC152886483862en-000801 | 47

Page 48: OMT/OMV Orbital Motors Technical Information

OMV shaft version

R0.5 [0.020]

151-878.12_A

60˚ A-AA

A

82 [3.23]

26 [1.02]

9.5 [0.374]

M12

5.5 [0.217]4.5 [0.177]

70.5 [2.776]70.0 [2.756]79 [3.11]

14.000 [0.5512]13.957 [0.5495]

53.5

[2.1

06]

53.2

[2.0

94]

Ø50

.018

[1.9

692]

Ø50

.002

[1.9

686]

Ø60

[2.3

6]

A

D

A: Cylindrical 50 mm shaft

D: Parallel key

A14 × 9 × 70; DIN 6885

Keyway deviates from standard

R0.5 [0.020]

151-878.12_B

60˚ A-AA

A

3/8 -16 UNC

82.2 [3.236]81.8 [3.220]

min. 20[0.78]

12.73 [0.501]12.70 [0.500]

13.1 [0.516]10.9 [0.429]

57.5 [2.264]56.9 [2.240]

Ø57

.15

[2.2

50]

Ø57

.10

[2.2

48]

62.9

2 [2

.477

]62

.66

[2.4

67]

Ø60

[2.3

6]

B

E

B: Cylindrical 2.25 in shaft for OMV with standard mounting flange

E: Parallel key

1/2 × 1/2 × 21/4 in; B.S. 46

Keyway deviates from standard

Technical InformationOMT and OMV Orbital Motors

Shaft version

48 | © Danfoss | September 2021 BC152886483862en-000801

Page 49: OMT/OMV Orbital Motors Technical Information

R0.5 [0.020]

151-878.12_C

60˚ A-AA

A

12.73 [0.501]12.70 [0.500]

70.4 [2.772]70.2 [2.763]

min. 26[1.02]

½ -20 UNF

99.2 [3.906]98.8 [3.890]

57.1

5 [2

.250

]57

.10

[2.2

48]

62.9

3 [2

.478

]62

.66

[2.4

67]

Ø60

[2.3

6]C

F

C Cylindrical 2.25 in shaft for OMV with mounting flange SAE-C

F Parallel key

1/2 × 1/2 × 21/4 in; B.S. 46

Keyway deviates from standard

D

R0.5 [0.020]

82[3.23]

26 [1.02]

9.5 [0.374]M12

58 [2.28]56 [2.20]

151-1918.10_D

Ø60

[2.3

6]

53.9

75 [2

.125

0]53

.950

[2.1

240]

45˚

A-A

A

A

D: Involute splined shaft ANS B92.1 - 1996 standard

Flat root side fit

Pitch 8/16; Teeth 16

Major dia. 2.125 in

Pressure angle 30°

Technical InformationOMT and OMV Orbital Motors

Shaft version

© Danfoss | September 2021 BC152886483862en-000801 | 49

Page 50: OMT/OMV Orbital Motors Technical Information

US version

E

57 [2.24]55 [2.17]

R0.5 [0.020]

82.2 [3.236]81.8 [3.220] min. 20 [0.78]

3/8 -16 UNC

151-1918.10_E

Ø60

[2.3

6]

Ø53

.975

[2.1

250]

Ø53

.950

[2.1

240]

45˚

A-AA

A

E: Involute splined shaft for OMV with standard mounting flange ANS B92.1 - 1996 standard

Flat root side fit

Pitch 8/16; Teeth 16

Major dia. 2.125 in

Pressure angle 30°

US version

F

76.9 [3.028]76.5 [3.011]

min. 26 [1.02]

½ -20 UNF

56.3 [2.217]55.3 [2.177]

R0.5 [0.020]

151-1918.10_F

Ø60

[2.3

6]

Ø53

.972

[2.1

249]

Ø53

.954

[2.1

242]

30˚ A-AA

A

F: Involute splined shaft for OMV with mounting flange SAE-C ANS B92.1 - 1996 standard

Flat root side fit

Pitch 8/16; Teeth 16

Major dia. 2.125 in

Pressure angle 30°

Technical InformationOMT and OMV Orbital Motors

Shaft version

50 | © Danfoss | September 2021 BC152886483862en-000801

Page 51: OMT/OMV Orbital Motors Technical Information

40.5 [1.594]40.0 [1.575]

105 [4.13]

70 [2.76]16.000 [0.6299]15.957 [0.6282]

6 [0.24]

23 [0.91]

7 [0.28]

151-1919.10_G

Ø60

[2.3

6]

32.2

5 [1

.270

]32

.05

[1.2

62]

M42

x3 [0

.12]

Ø9

[0.3

5]

Ø78

[3.0

7]

Ø8

[0.3

1]

A-A

A

A

I J

K

G

G: Tapered 60 mm shaft

J: DIN 937

Across flats: 65 mm

Tightening torque: 750 ±50 N•m [6640 ±440 lbf•in]

I: Taper 1:10

K: Parallel key B16 × 10 × 32

DIN 6885

Keyway deviates from standard

51.1 [2.012]50.5 [1.988]

73.6 [2.898]72.4 [2.850]

100.4 [3.953]99.6 [3.921]

4.5 [0.177]

14.308 [0.5633]14.288 [0.5625]

16 [0.63]

151-1919.10_H

Ø4

[0.1

6]Ø

57.2

0 [2

.252

57.1

0 [2

.248

]

7.29

[0.2

87]*

7.19

[0.2

83]

Ø60

[2.3

6]

45˚

A-AA

A

H

N

ML

H: Tapered 2.25 in shaft

L: Cone 1:8

SAE J501

M: 11/2 - 18 UNEF

Across flats: 2 3/8 in

Tightening torque: 750 ±50 N•m [6640 ±440 lbf•in]

N: Parallel key

9/16 × 9/16 × 2 in

Technical InformationOMT and OMV Orbital Motors

Shaft version

© Danfoss | September 2021 BC152886483862en-000801 | 51

Page 52: OMT/OMV Orbital Motors Technical Information

B.S. 46

Keyway deviates from standard

OMV port thread versions

151-1977.11_A

min

. 18

[0.6

7]

A

EA: G main ports

E: ISO 228/1 - G1

151-1977.11_B

min

. 19

[0.7

5]

Ø41.5 [1.634]Ø41.0 [1.614]

B

F

B: UN main ports

F: 1 5/16 - 12 UN O-ring boss port

151-1977.11_C

min

. 12

[0.4

7]

C

GC: G drain port

G: ISO 228/1 - G1/4

151-1977.11_D

min

. 13

[0.5

1]

D

H

D: UNF drain port

H: 9/16 - 18 UNF O-ring boss port

Technical InformationOMT and OMV Orbital Motors

Shaft version

52 | © Danfoss | September 2021 BC152886483862en-000801

Page 53: OMT/OMV Orbital Motors Technical Information

OMV dimensions - European version

OMV standard flange - European version

Ø146.4 [5.764]Ø145.0 [5.710]

Ø160.000 [6.2992]Ø159.937 [6.2967]

Ø88 [3.46]Ø90 [3.54]

2 [0

.08]

x45˚

40 [1

.57]

60 [2

.36]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

24.6

[0.9

69]

23.4

[0.9

21]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

11 [0

.43]

R1.6

[0.0

63]

39.4

[1.5

51]

38.6

[1.5

20]

20 [0

.79]

33˚

max

. 76

[2.9

9]

Ø200.4 [7.890]

Ø199.6 [7.858]

max. 81 [3.19]max. 77 [3.03]

8 [0.31]69 [2.72]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

R16 [0.63]Ø18 [0.71]

max

. 181

.3 [7

.14]

max. 181.3 [7.14]

151-890.12

25.3 [0.996]24.7 [0.972]

25.3 [0.996]24.7 [0.972]

120 [4.72]max. 149 [5.87]

L L 1

L 2L 3

D

E

C

C: Drain connection G 1⁄4; 12 mm [0.47 in] deep

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 53

Page 54: OMT/OMV Orbital Motors Technical Information

D: M12; 12 mm [0.47 in] deep

E: G 1; 18 mm [0.71 in] deep

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 216 [8.50] 223 [8.78] 231 [9.09] 242 [9.53] 256 [10.08]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 160 [6.30] 167 [6.57] 175 [6.89] 186 [7.32] 200 [7.87]

Weight kg [lb] 31.8 [70.1] 32.6 [71.9] 33.5 [73.9] 34.9 [76.9] 36.5 [80.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft Cyl. 50 mm Splined 2.125 in Tapered 60 mm

L3 mm [in] 82 [3.23] 105 [4.13]

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

54 | © Danfoss | September 2021 BC152886483862en-000801

Page 55: OMT/OMV Orbital Motors Technical Information

OMV Wheel - European version

Ø146.4 [5.764]Ø145.0 [5.710]

Ø180.000 [7.0866]Ø179.937 [7.0841]

Ø148.0 [5.827]Ø147.9 [5.823]

Ø88 [3.46]Ø90 [3.54]

2 [0

.08]

x45˚

24.6

[0.9

69]

23.4

[0.9

21]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]3.

6[0.

142]

22 [0

.87]

10 [0

.39]

79 [3

.11]

108

[4.2

5]

20 [0

.79]

33˚

max

. 76

[2.9

9]

Ø224.3 [8.831]

Ø223.7 [8.807]

max. 81 [3.19]max. 77 [3.03]

8 [0

.31]

max

. 107

.7 [4

.240

]

R1.2

[0.0

47]

R1.2

[0.0

47]

85 [3.35]23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

R16 [0.63]Ø18 [0.71]

max

. 200

[7.8

7]

max. 200 [7.87]

151-899.12

25.3 [0.996]24.7 [0.972]

25.3 [0.996]24.7 [0.972]

120 [4.72]max. 149 [5.87]

Ø194.000 [7.6378]Ø193.928 [7.6350]

L

L 1

L 2L 3

E

C

D

C: Drain connection G 1⁄4; 12 mm [0.47 in] deep

D: M12; 12 mm [0.47 in] deep

E: G 1; 18 mm [0.71 in] deep

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 55

Page 56: OMT/OMV Orbital Motors Technical Information

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 148 [5.83] 155 [6.10] 163 [6.42] 174 [6.85] 188 [7.40]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 92 [3.62] 99 [3.90] 107 [4.21] 118 [4.65] 132 [5.20]

Weight kg [lb] 32.4 [71.4] 33.2 [73.2] 34.1 [35.5] 35.5 [78.3] 37.1 [81.8]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft Cyl. 50 mm Tapered 60 mm

L3 mm [in] 82 [3.23] 105 [4.13]

OMV short - European version

Ø140.000 [5.5118]Ø139.937 [5.5093]

82 [3.23]

Ø14 [0.55]

58 [2.28]

Ø6 [0.24]

28 [1

.10]

max

. 76

[2.9

9]22

[0.8

7]35

[1.3

8]

1 [0

.04]

x45˚

24.6

[0.9

69]

23.4

[0.9

21]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

14.0

[0.5

51]

13.0

[0.5

12]

R1 [0.04]

20 [0

.79]

max. 81 [3.19]max. 77 [3.03]

8 [0.31]

8 [0

.31]

28 [1.10]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

23.9 [0.941]22.9 [0.902]

max. Ø207 [8.15]Ø180.4 [7.102]Ø179.6 [7.071]

151-900.11

25.3 [0.996]24.7 [0.972]

25.3 [0.996]24.7 [0.972]

120 [4.72]max. 149 [5.87]

L

L 1L 2

C

ED

C: Drain connection G 1⁄4; 12 mm [0.47 in] deep

D: M12; 12 mm [0.47 in] deep

E: G 1; 18 mm [0.71 in] deep

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

56 | © Danfoss | September 2021 BC152886483862en-000801

Page 57: OMT/OMV Orbital Motors Technical Information

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 173 [6.81] 180 [7.09] 188 [7.40] 199 [7.83] 213 [8.39]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 117 [4.61] 124 [4.88] 132 [5.20] 143 [5.63] 157 [6.18]

Weight kg [lb] 22.7 [50.1] 23.5 [78.3] 24.4 [53.8] 25.6 [56.4] 27.2 [61.1]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

OMV dimensions - US version

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 57

Page 58: OMT/OMV Orbital Motors Technical Information

OMV standard flange - US version

Ø160.000 [6.2992]Ø159.937 [6.2967]

Ø146.3 [5.760]Ø145.7 [5.736]

Ø90 [3.54]Ø88 [3.46]

39.4

[1.5

51]

38.6

[1.5

20]

2 [0

.08]

x45˚

24.6

[0.9

69]

23.4

[0.9

21]

33˚

R1.6

[0.0

63]

max

. 76

[2.9

9]

Ø200.4 [7.890]

Ø199.6 [7.858]

40 [1

.57]

60 [2

.36]

11 [0

.43]

20 [0

.79]

max. 77 [3.03] max. 83 [3.27]

69 [2.72]

77 [3.03]

R16 [0.63]Ø18 [0.71]

max

. 181

.3 [7

.14]

max. 181.3 [7.14]

151-890.12.22

25.3 [0.996]24.7 [0.972]

25.3 [0.996]24.7 [0.972]

120 [4.72]max. 149 [5.87]

L L 1

L 2L 3

C

D

C: Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D: 1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

58 | © Danfoss | September 2021 BC152886483862en-000801

Page 59: OMT/OMV Orbital Motors Technical Information

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 216 [8.50] 223 [8.78] 231 [9.09] 242 [9.53] 256 [10.08]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 160 [6.30] 167 [6.57] 175 [6.89] 186 [7.32] 200 [7.87]

Weight kg [lb] 31.8 [70.1] 32.6 [71.9] 33.5 [73.9] 34.9 [76.9] 36.5 [80.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft Cyl. 2.25 in Splined 2.125 in Tapered 2.25 in

L3 mm [in] 82 [3.23] 100 [3.94]

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 59

Page 60: OMT/OMV Orbital Motors Technical Information

OMV SAE-C flange - US version

Ø127.00 [5.000]Ø126.95 [4.998]

71.0 [2.795]

81.5 [3.209]

Ø162.3 [6.390]

Ø161.5 [6.358]

max. 147 [5.79]

151-1485.11

Ø17.7 [0.697]Ø17.3 [0.681]

max. 77 [3.03] max. 83 [3.27]

16.1

[0.6

34]

13.7

[0.5

39]

13.8

[0.5

43]

13.2

[0.5

20]

21.0

[0.8

27]

19.6

[0.7

72]

max

. 76

[2.9

9]m

ax. 1

47 [5

.79]

85.5

[3.3

66]

24.0

[0.9

45]

max. 121 [4.76]

max. 149 [5.87]

25 [0.98]25 [0.98]

R16 [0.63]

L

L 1

L 2

L 3

D

C

C: Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D: 1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

60 | © Danfoss | September 2021 BC152886483862en-000801

Page 61: OMT/OMV Orbital Motors Technical Information

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 240 [9.45] 247 [9.72] 255 [10.04] 266 [10.47] 280 [11.02]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 185 [7.28] 192 [7.56] 200 [7.87] 211 [8.31] 225 [8.86]

Weight kg [lb] 30.0 [66.2] 30.8 [67.9] 31.7 [69.9] 33.1 [73.0] 34.7 [76.5]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Output shaft Cyl. 2.25 in Splined 2.125 in

L3 mm [in] 99 [3.90] 76.7 [3.02]

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 61

Page 62: OMT/OMV Orbital Motors Technical Information

OMV wheel - US version

D

C

Ø146.3 [5.760]Ø145.7 [5.736]

Ø90 [3.54]Ø88 [3.46]

100.

4 [3

.953

]99

.6 [3

.921

]

2 [0

.08]

x45˚

20 [0

.79]

3.6

[0.1

42]

24.6

[0.9

69]

23.4

[0.9

21]

10 [0

.39]

79 [3

.11]

108

[4.2

5]

22 [0

.87]

33˚

R1.2

[0.0

47]

R1.2

[0.0

47]

max

. 76

[2.9

9]

max

. 200

[7.8

7]m

ax. 1

07.7

[4.2

40]

Ø224.3 [8.831]

Ø223.7 [8.807]

8 [0

.31]

Ø148.0 [5.827]Ø147.9 [5.823]

max. 83 [3.27]max. 77 [3.03]85 [3.35]

R16 [0.63]Ø18 [0.71]

max. 200 [7.87]

151-899.12.22

25.3 [0.996]24.7 [0.972]

25.3 [0.996]24.7 [0.972]

120 [4.72]max. 149 [5.87]

Ø194.000 [7.6378]Ø193.928 [7.6350]

Ø180.000 [7.0866]Ø179.937 [7.0841]

L

L 1

L 2

C: Drain connection 9⁄16 - 18 UNF; 13 mm [0.51 in] deep O-ring boss port

D: 1 5⁄16 - 12 UN; 19 mm [0.75 in] deep O-ring boss port

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

62 | © Danfoss | September 2021 BC152886483862en-000801

Page 63: OMT/OMV Orbital Motors Technical Information

Type OMV 315 OMV 400 OMV 500 OMV 630 OMV 800

LMax. mm [in] 148 [5.83] 155 [6.10] 163 [6.42] 174 [6.85] 188 [7.40]

L1* mm [in] 22.0 [0.866] 29.0 [1.142] 37.0 [1.457] 47.5 [1.870] 61.5 [2.421]

L2 mm [in] 92 [3.62] 99 [3.90] 107 [4.21] 118 [4.65] 132 [5.20]

Weight kg [lb] 32.4 [71.4] 33.2 [73.2] 34.1 [35.5] 35.5 [78.3] 37.1 [81.8]* The gearwheel set is 3.5 mm [0.138 in] wider across the rollers than the L1 dimensions

Technical InformationOMT and OMV Orbital Motors

OMV dimensions

© Danfoss | September 2021 BC152886483862en-000801 | 63

Page 64: OMT/OMV Orbital Motors Technical Information

Installing the OMVS

The cardan shaft of the OMVS motor acts as an “output shaft”. Because of the movement of the shaft, noseal can be fitted at the shaft output.

Internal oil leakage from the motor will therefore flow into the attached component.

During start and operation it is important that the spline connection and the bearings in the attachedcomponent receive oil and are adequately lubricated. To ensure that the spline connection receivessufficient oil, a conical sealing ring between the shaft of the attached component and the motorintermediate plate is recommended. This method is used in the OMV.

The conical sealing ring (code. no. 633B9021) is supplied with the motor.

To ensure that oil runs to the bearings and other parts of the attached component, the stop plate musthave a hole in it (see fig. below).

We recommend an O-ring between motor and attached component. The O-ring (code no. 151B1041) issupplied with the motor. If motor and attached component have been separated, remember to refillbefore starting up. Fill the oil through the drain connection.

Attached component dimensions for OMVS

OMVS dimensions of the attached component in millimeter [inches]

E

B

A CF

GH

D

2.35 [0.093]2.25 [0.089]

0.25 [0.010]

0.1˚ 6 [0.24]4 [0.16]

32.5 [1.280]31.5 [1.240]

53.3 [1.098]52.7 [2.075]

76.3 [3.004]75.7 [2.980]

9.5 [0.374]8.5 [0.335]

8.4 [0.331]7.6 [0.299] 20.5 [0.807]

19.5 [0.768]28.7 [1.130]26.3 [1.035]

151-815.11

min. 5 [0.2]max. 2 [0.08]

min

. Ø6

[0.2

4]

Ø14

0.06

3 [5

.514

3]Ø

140.

000

[5.5

118]

min

. Ø60

[2.3

6]

Ø14

7.9

[5.8

23]

Ø14

7.7

[5.8

15]

Ø56

.3 [2

.217

55.5

[2.1

65]

Ø46

.2 [1

.819

45.8

[1.8

03]

Ø10

2 [4

.02]

Ø10

0 [3

.94]

Ø61

.2 [2

.409

61.0

[2.4

02]

Ø71

[2.8

0]Ø

69 [2

.72]

RKK

K

A: O-ring: 140 × 3 mm

B: External drain channel

C: Drain connection G 1⁄4; 12 mm [0.47 in] deep

D: Conical seal ring

E: Internal drain channel

F: M12; minimum 18 mm [0.71 in] deep

G: Oil circulation hole

H: Hardened stop plate

Technical InformationOMT and OMV Orbital Motors

OMVS

64 | © Danfoss | September 2021 BC152886483862en-000801

Page 65: OMT/OMV Orbital Motors Technical Information

Attached component internal splines for OMVS

The attached component must have internal splines corresponding to the external splines on the motorcardan shaft (see the following drawing).

Material

Case hardening steel with a tensile strength corresponding at least to 20 MoCr4 (900 N/mm2) or SAE8620.

Hardening specification

• On the surface: HV = 750 ± 50• 0.7 ± 0.2 mm under the surface: HV = 560

Internal involute spline data; Standard ANS B92.1-1996, class 5 (corrected m · X = 1; m = 2.54)

Flat root side fit mm [in]

Number of teeth z 16

Pitch DP 10/20

Pressure angle 30°

Pitch diameter D 40.640 [1.6]

Major diameter Dri 45.20+0.4 [1.7800

+0.016]

Form diameter (minimum) Dfi 44.6 [1.756]

Minor diameter Di 38.50+ 0.039 [1.5160

+ 0.0015]

Space width (circular) Lo 5.180 ±0.037 [0.204 ±0.0015]

Tooth thickness (circular) So 2.835 [0.1116]

Fillet radius Rmin. 0.4 [0.015]

Maximum measurement between pins* l 32.470+ 0.15 [1.2780

+0.006]

Pin diameter d 5.6 ±0.001 [0.22 ±0.00004]* Finished dimensions (when hardened)

dl

D

DriDi

Dfi

So

Lo

Rmin

151-816.10

Motor or attached component drain connection

Use the drain line when pressure in the return line exceeds the permissible pressure on the shaft seal ofthe attached component.

Connect the drain line either at the:• Motor drain connection• Drain connection of the attached component

If a drain line is fitted to the attached component, it must be possible for oil to flow freely between motorand attached component.

Technical InformationOMT and OMV Orbital Motors

OMVS

© Danfoss | September 2021 BC152886483862en-000801 | 65

Page 66: OMT/OMV Orbital Motors Technical Information

The drain line must be led to the tank in such a way that there is no risk of the motor and attachedcomponent being drained of oil when at rest.

The maximum pressure in the drain line is limited by the attached component and its shaft seal.

Technical InformationOMT and OMV Orbital Motors

OMVS

66 | © Danfoss | September 2021 BC152886483862en-000801

Page 67: OMT/OMV Orbital Motors Technical Information

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic andelectric components. We specialize in providing state-of-the-art technology and solutionsthat excel in the harsh operating conditions of the mobile off-highway market as well as themarine sector. Building on our extensive applications expertise, we work closely with you toensure exceptional performance for a broad range of applications. We help you and othercustomers around the world speed up system development, reduce costs and bring vehiclesand vessels to market faster.

Danfoss Power Solutions – your strongest partner in mobile hydraulics and mobileelectrification.

Go to www.danfoss.com for further product information.

We offer you expert worldwide support for ensuring the best possible solutions foroutstanding performance. And with an extensive network of Global Service Partners, we alsoprovide you with comprehensive global service for all of our components.

Local address:

Danfoss Power Solutions GmbH & Co. OHGKrokamp 35D-24539 Neumünster, GermanyPhone: +49 4321 871 0

Danfoss Power Solutions ApSNordborgvej 81DK-6430 Nordborg, DenmarkPhone: +45 7488 2222

Danfoss Power Solutions (US) Company2800 East 13th StreetAmes, IA 50010, USAPhone: +1 515 239 6000

Danfoss Power Solutions Trading(Shanghai) Co., Ltd.Building #22, No. 1000 Jin Hai RdJin Qiao, Pudong New DistrictShanghai, China 201206Phone: +86 21 2080 6201

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to productsalready on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

© Danfoss | September 2021 BC152886483862en-000801

Products we offer:

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