Axial Piston Fixed Motor A2FNM RE 91007/02.11 1 for Fan ... · the viscosity classes VG 46 or VG 68; to be ... Permissible temperature difference DT ≤ 25 K between axial piston

FeaturesFixed motor with axial tapered piston rotary group of bent- –axis design, for hydrostatic drives in open circuits

For use in mobile and stationary applications –

The output speed depends on the flow of the pump and the –displacement of the motor.

The output torque increases with the pressure differential –between the high and low-pressure side and with increasing displacement

Finely graded sizes provide for good adaptation to the re- –quired drive application

With integrated check valve for discharge of flywheel mass. –

High efficiency and cost-effective start-up efficiency –

High power density –

High speed –

Low-noise operation –

Compact dimensions and low mass –

Robust bearings –

For absorbing radial forces -

For saving on collar bearings -

For direct mounting of fan wheel -

ContentsOrdering code for standard program 2

Technical data 3

Port plate with integrated check valve 8

Dimensions size 10, 12, 16 9

Dimensions size 23, 28, 32 10

Dimensions size 45 11

Dimensions size 56, 63 12



Installation instructions 15

General instructions 16

Linear Motion andAssembly Technologies ServicePneumaticsHydraulics

Electric Drives and Controls

Data sheet

Axial Piston Fixed Motor A2FNM for Fan Drives and Flywheel Mass

RE 91007/02.11 1/16

Series 61Sizes 10 to 125Nominal pressure 300 barMaximum pressure 350 barOpen circuit

Axial piston unit

01Bent-axis design, fixed, nominal pressure 300 bar, maximum pressure 350 bar, with single direction of rotation for fan drive and flywheel mass A2FN

Operating mode02 Motor M

Size (NG)

03Geometric displacement, see table of values on page 6 10 12 16 23 28 32 45 56 63 80 90 107 125

Series04 Series 6, index 1 61

Direction of rotation

05Viewed on drive shaft clockwise R

counter-clockwise L

Seals06 FKM (fluor-caoutchouc) V

Drive shaft 10 12 16 23 28 32 45 56 63 80 90 107 125

07

Splined shaft DIN 5480 – A

– – – – – – – – – – – – Z

Parallel keyed shaft, DIN 6885 – B

– – – – – – – – – – – – P

Mounting flange08 ISO 3019-2 – 4-hole B

Port plate for service lines1)Direction of rotation 10 12 16 23 28 32 45 56 63 80 90 107 125

09

Threaded ports A and B, bottom ccw – – – m – – – – – –16

cw m m m – – – – – – – – – –

Threaded ports A and B, 1x side and 1x rear

ccw m m m – – – m m m – –48

cw m m m – – – m m m – –

SAE flange ports A and B, 1x side and 1x rear

ccw – – – m m m – – – – – – –49

cw – – – m m m – – – – – – –

SAE flange ports A and B, bottom ccw – – – – – – – – – m m34

cw – – – – – – – – – – – m m

Valves

10Integrated check valve without flushing notch A

with standard flushing notch from return line B

Standard / special version

11Standard version

Special version -S

NoteShort designation X on a feature refers to a special version not covered by the ordering code.

= Available m = On request – = Not available

Fastening thread or threaded ports, metric1)

A2FN M / 61 – V B01 02 03 04 05 06 07 08 09 10 11

Ordering code for standard program

2/16 Bosch Rexroth AG A2FNM Series 61 RE 91007/02.11

Technical dataHydraulic fluidBefore starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed information regarding the choice of hydraulic fluid and application conditions.

The fixed motor A2FNM is not suitable for operation with HFA hydraulic fluid. If HFB, HFC and HFD or environmentally acceptable hydraulic fluids are being used, the limitations regarding technical data and seals mentioned in RE 90221 and RE 90223 must be observed.

When ordering, indicate the hydraulic fluid that is to be used.

Selection diagram

tmin = -40 °C tmax = +115 °C

-40° -25° -10° 10° 30° 50° 90° 115°70°0°5

10

4060

20

100

200

400600

10001600

-40° 0° 20° 40° 60° 80° 100°-20°1600

νopt

16

36

VG 22

VG 32

VG 46

VG 68

VG 100

5

Visc

osity

ν [

mm

2 /s]

Hydraulic fluid temperature range

Temperature t [°C]

Details regarding the choice of hydraulic fluid

The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature: in an open circuit the reservoir temperature.

The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range (νopt.), see shaded area of the selection diagram. We recommended that the higher viscosity class be selected in each case.

Example: At an ambient temperature of X °C, an operating temperature of 60 °C is set in the circuit. In the optimum oper-ating viscosity range (νopt., shaded area), this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68.

Note The case drain temperature, which is affected by pressure and speed, is always higher than the reservoir temperature. At no point of the component may the temperature be higher than 115 °C, however. The temperature difference specified below is to be taken into account when determining the viscosity in the bearing.

If the above conditions cannot be maintained due to extreme operating parameters, please contact us.

Viscosity and temperature

Viscosity [mm2/s] Temperature CommentTransport and storage Tmin ≥ -50 °C

Topt = +5 °C to +20 °Cup to 12 months with standard factory preservation up to 24 months with long-term factory preservation

(Cold) start-up1) νmax = 1600 TSt ≥ -40 °C t ≤ 3 min, without load (p ≤ 50 bar), n ≤ 1000 rpmPermissible tempe rature difference DT ≤ 25 K between axial piston unit and hydraulic fluid

Warm-up phase ν < 1600 to 400 T = -40 °C to -25 °C at pnom, 0.5 • nnom and t ≤ 15 minOperating phase

Temperature difference DT = approx. 12 K between hydraulic fluid in the bearing and the case drain fluid at port T.

Maximum temperature 115 °C in bearing

103 °C measured at port T

Continuous operation ν = 400 to 10 νopt = 16 to 36

T = -25 °C to +90 °C measured at port T, no restriction within the permissible data

Short-term operation νmin < 10 to 5 Tmax = +103 °C measured at port T, t < 3 min, p < 0.3 • pnom

FKM shaft seal1) T ≤ +115 °C see page 4

At temperatures below -25°C, an NBR shaft seal is required (permissible temperature range: -40 °C to +90 °C).1)

A2FNM Series 61 RE 91007/02.11 Bosch Rexroth AG 3/16

Technical dataDirection of flowDirection of rotation, viewed on drive shaft

cw ccw

A to B B to A

Speed rangeNo limit to minimum speed nmin. If uniformity of motion is required, speed nmin must not be less than 50 rpm. See table of values on page 6 for maximum speed.

Filtration of the hydraulic fluidFiner filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit.

To ensure the functional reliability of the axial piston unit, a gravimetric analysis of the hydraulic fluid is necessary to determine the amount of solid contaminant and to determine the cleanliness level according to ISO 4406. A cleanliness level of at least 20/18/15 is to be maintained.

At very high hydraulic fluid temperatures (90 °C to maximum 115 °C), a cleanliness level of at least 19/17/14 according to ISO 4406 is necessary.

If the above classes cannot be achieved, please contact us.

Shaft seal

Permissible pressure loading

The service life of the shaft seal is affected by the speed of the motor and the case drain pressure. It is recommended that the average, continuous case drain pressure of 3 bar absolute at operating temperature is not exceeded (maximum permissible case drain pressure 6 bar absolute at reduced speed, see diagram). Short-term (t < 0.1 s) pressure spikes of up to 10 bar absolute are permitted. The service life of the shaft seal de-creases with an increase in the frequency of pressure spikes.

The case pressure must be equal to or greater than the exter-nal pressure on the shaft seal.

Speed n [rpm]

NG107, 125

NG80, 90

7000 80005000 600040002000 30000 10001

2

3

4

5

6NG10, 12, 16

NG23, 28, 32NG56, 63

NG45

Per

m. p

ress

ure

p abs

max

[ba

r]

Temperature range

The FKM shaft seal may be used for case drain temperatures from -25 °C to +115 °C.

NoteFor application cases below -25 °C, an NBR shaft seal is required (permissible temperature range: -40 °C to +90 °C). State NBR shaft seal in plain text when ordering. Please contact us.


Technical dataOperating pressure range

Pressure at service line port A or B

Nominal pressure pnom _________________ 300 bar absolute

Maximum pressure pmax _______________ 350 bar absolute Single operating period ____________________________ 10 s Total operating period _____________________________ 300 h

Minimum pressure (high-pressure side) __________ 25 bar

Rate of pressure change RA max ______________ 9000 bar/s

pnom

Dt

Dp

Time t

Pre

ssur

e p

Minimum pressure – pump mode (inlet)To prevent damage to the axial piston motor in pump mode, a minimum pressure must be ensured at the service line port (inlet). The minimum required pressure is dependent on the speed of the axial piston unit (see chart below).

1.00.80.60.40.2012

4

6

8

10

12

Min

imum

pre

ssur

e (in

let)

, abs

olut

e [b

ar]

Speed n / nnom

This diagram is valid only for the optimum viscosity range from νopt = 16 to 36 mm2/s. Please contact us if these conditions cannot be satisfied.

Definition

Nominal pressure pnom

The nominal pressure corresponds to the maximum design pressure.

Maximum pressure pmax

The maximum pressure corresponds to the maximum operat-ing pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.

Minimum pressure (high-pressure side)Minimum pressure at the high-pressure side (A or B) which is required in order to prevent damage to the axial piston unit.

Rate of pressure change RA

Maximum permissible rate of pressure rise and reduction during a pressure change over the entire pressure range.

Pre

ssur

e p t1

t2 tnSingle operating period

Minimum pressure (high-pressure side)

Maximum pressure pmaxNominal pressure pnom

Time t

Total operating period = t1 + t2 + ... + tn


Technical dataTable of values (theoretical values, without efficiency and tolerances; values rounded)

Size NG 10 12 16 23 28 32 45

Displacement, geometric, per revolution

Vg cm3 10.3 12 16 22.9 28.1 32 45.6

Speed maximum1) nnom rpm 8000 8000 8000 6300 6300 6300 5600

Input flow at Vg and nnom qV max l/min 82 96 128 144 176 201 255

Torque at Vg and Dp = 300 bar T Nm 49 57 76 109 134 153 218

Rotary stiffness of drive shaft c Nm/rad 922 1250 1590 2560 2930 3120 4180

Moment of inertia for rotary group JGR kgm2 0.0004 0.0004 0.0004 0.0012 0.0012 0.0012 0.0024

Maximum angular acceleration a rad/s2 5000 5000 5000 6500 6500 6500 14600

Case volume V L 0.17 0.17 0.17 0.20 0.20 0.20 0.33

Mass (approx.) m kg 5.4 5.4 5.4 9.5 9.5 9.5 13.5

Size NG 56 63 80 90 107 125

Displacement, geometric, per revolution

Vg cm3 56.1 63 80.4 90 106.7 125

Speed maximum1) nnom rpm 5000 See table below2)

Input flow at Vg and nnom qV max l/min 280 315 360 405 427 500

Torque at Vg and Dp = 300 bar T Nm 268 301 384 430 509 597

Rotary stiffness of drive shaft c Nm/rad 5940 6250 8730 9140 11200 11900

Moment of inertia for rotary group JGR kgm2 0.0042 0.0042 0.0072 0.0072 0.0116 0.0116

Maximum angular acceleration a rad/s2 7500 7500 6000 6000 4500 4500

Case volume V L 0.45 0.45 0.55 0.55 0.8 0.8

Mass (approx.) m kg 18 18 23 23 32 32

Speed, maximum1)

Size 63 80 90 107 125Return pressure [bar]

4 49002) 38002) 34002) 29002) 24002)

6 5000 4500 42002) 35002) 30002)

8 5000 4500 4500 4000 35002)

10 5000 4500 4500 4000 39002)

12 5000 4500 4500 4000 4000

The values are valid: 1)

- for the optimum viscosity range from νopt = 16 to 36 mm2/s - for mineral-based operating materials with a specific mass of 0.88 kg/l.Reduced speed through restricted flow via check valve2)

NoteOperation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Other permissible limit values, such as speed variation, reduced angular acceleration as a function of the frequency and the permissible angular acceleration at start (lower than the maximum angular acceleration) can be found in data sheet RE 90261.

Determining the size

Input flow qv =Vg • n

[L/min]1000 • ηv

Speed n =qV • 1000 • ηv

[rpm]Vg

Torque T = Vg • Dp • ηmh

[Nm]20 • π

Power P =2 π • T • n

=qv • Dp • ηt

[kW]60000 600

Vg = Displacement per revolution in cm3

Dp = Differential pressure in bar

n = Speed in rpm

ηv = Volumetric efficiency

ηmh = Mechanical-hydraulic efficiency

ηt = Total efficiency (ηt = ηv • ηmh)


Technical dataPermissible radial and axial forces of the drive shaftSize NG 10, 12, 16 10, 12, 16 23, 28, 32 23, 28, 32 45 45

Drive shaft Code A B A B Z P

mm W25 ø25 W30 ø30 W30 ø30

Maximum radial force1)

at distance a (from shaft collar) a

Fq Fq max N 3667 3259 6112 5432 7964 7639

a mm 16 16 16 16 18 18

Permissible nominal pressure at Vg max

pnom perm. bar 450 400 450 400 417 400

Maximum axial force2)

–+Fax+Fax max N 320 320 500 500 630 630

—Fax max N 0 0 0 0 0 0

Permissible axial force per bar operating pressure

±Fax perm/bar N/bar 3.0 3.0 5.2 5.2 7.0 7.0

Size NG 56, 63 56, 63 80, 90 80, 90 107, 125 107, 125

Drive shaft Code A B A B A B

mm W35 ø35 W40 ø40 W45 ø45

Maximum radial force1)

at distance a (from shaft collar) a

Fq Fq max N 10313 9167 12892 11459 15915 14147

a mm 18 18 20 20 20 20

Permissible nominal pressure at Vg max

pnom perm. bar 450 400 450 400 450 400

Maximum axial force2)

–+Fax+Fax max N 800 800 1000 1000 1250 1250

—Fax max N 0 0 0 0 0 0

Permissible axial force per bar operating pressure

±Fax perm/bar N/bar 8.7 8.7 10.6 10.6 12.9 12.9

With intermittent operation1)

Maximum permissible axial force during standstill or when the axial piston unit is operating in non-pressurized condition.2)

NoteInfluence of the direction of the permissible axial force:

+ Fax max = Increase in service life of bearings

– Fax max = Reduction in service life of bearings (avoid)

Effect of radial force Fq on the service life of bearings

By selecting a suitable direction of radial force Fq, the load on the bearings, caused by the internal rotary group forces can be reduced, thus optimizing the service life of the bearings. Recommended position of mating gear is dependent on direction of rotation. Examples:

Gear drive V-belt drive

"Counter-clockwise" direction of rotation

Pressure at port B

Direction of rotation

alternating

"Clockwise" direction of rotation

Pressure at port A

"Counter-clockwise" direction of rotation

Pressure at port B

A B

φ opt = 70° φopt = 70°

A B

φopt = 45° φopt = 45°


The motor with the defined direction of rotation is supplied via the inlet port (A or B). As soon as the inlet is cut off and the driven component (e.g. fan wheel) runs from its own flywheel mass, the motor works as a pump. Since the turning motor is now no longer supplied via the inlet, it gets the hydraulic fluid it needs from the return line via the check valve.

Schematic

Return (A or B)

Inlet (B or A)

T1

T2

Direction of flowDirection of rotation, viewed on drive shaft Clockwise Counterclockwise

A to B B to A

Version with flushing notch When too much heat is developed in the motor (dependent on pressure and speed), more heat can be dissipated by flushing the motor housing.

Flushing is done by diverting a flow of hydraulic fluid from the return line into the motor housing through a fixed notch. The flushing flow depends on the size of the notch and the pres-sure in the return line.

The flushing flow mixes with the case drain flow and is then fed through the drain port together with this.

The size of the drain port, the flow to be fed off and its viscosity determine the case pressure. This must not exceed the mean continuous case pressure of 3 bar absolute at operating temperature.

Schematic

Return (A or B)

Inlet (B or A)

T1

T2

Flushing notch

Port plate with integrated check valve

Maximum flow quantity [l/min] with standard flushing notch

Size 10, 12, 16 23, 28, 32 45 56, 63 80, 90 107, 125Return pressure [bar] at 10 mm2/s

4

On request

6

8

10

12


Dimensions size 10, 12, 16Port plate 16Threaded ports, bottom

97145

104B, A

95

T1

T2

�9

95

95

45°�45°�

�100

12

6018

20

�85

54

29

�80

-0.0

22

40°�

6

95

86

111.

5

46.5

46

A

B

A

B

Y

View Ycounter-clockwise rotation

View Yclockwise rotation

Drive shaftsA Splined shaft

DIN 5480W25x1.25x18x9g

B Parallel keyed shaft DIN 6885, AS8x7x32

28

22

M10

x 1

.51)

2)

ø28

7.5

22

+0.

015

M10

x 1

.51)

2)

ø25

+0.

002

28

40

7.5

22

ø28

PortsDesignation Port for Standard5) Size2) Maximum

pressure [bar]3)State

A, B Service line DIN 3852 M22 x 1.5; 14 deep 350 O

T1 Drain line DIN 3852 M12 x 1.5; 12 deep 3 X4)

T2 Drain line DIN 3852 M12 x 1.5; 12 deep 3 O4)

Center bore according to DIN 332 (thread according to DIN 13)1)

Observe the general instructions on page 16 for the maximum tightening torques.2)

Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and 3)

fittings.Depending on installation position, T4) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard.5)

O = Must be connected (plugged on delivered)X = Plugged (in normal operation)

Before finalizing your design, request a binding installation drawing. Dimensions in mm.


Port plate 49SAE flange ports, side and rear

Y

�11 11

8

118

45°�45°�

�125

�32

�13

1338.1

B A

120

137

17.5

BA

40°�

25

T1

56

ø1

00-0

.022

8

1825106

T24223.2

70

117�10

6

144

190

166

88View Y counter-clockwise rotation

View Y clockwise rotation


DIN 5480 W30x2x14x9g


M10

x 1

.51)

2)

3527

ø35

7.522

+0.

015

M10

x 1

.51)

2)

ø30

+0.

002

33

50

7.522

ø35

PortsDesignation Port for Standard Size2) Maximum


A, B Service line (standard pressure series) SAE J5184) 1/2 in 350 O

Fastening thread A/B DIN 13 M8 x 1.25; 15 deep O

T1 Drain line DIN 38526) M16 x 1.5; 12 deep 3 X5)

T2 Drain line DIN 38526) M16 x 1.5; 12 deep 3 O5)

Center bore according to DIN 332 (threads according to DIN 13)1)


Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring 3) devices and fittings.Only dimensions according to SAE J518. A metric fastening thread is a deviation from standard.4)

Depending on installation position, T5) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard.6)

O = Must be connected (plugged on delivered) X = Plugged (in normal operation)

Dimensions size 23, 28, 32 Before finalizing your design, request a binding installation drawing. Dimensions in mm.


Dimensions size 45Port plate 16Threaded ports, bottom

174199

109

118

137

7132

20

A

B

Y

�13.

5

150

150

45°�45°�

�16040

°�

63

30 42

ø125

-0.0

2532 20

108

28

12

T2

T1

�118

View Y counter-clockwise rotation

Drive shafts Z Splined shaft


P Parallel keyed shaft DIN 6885, AS8x7x50

M12

x 1

.751)

2)

3527

ø35

9.528

+0.

015

M12

x 1

.751

) 2)

ø30

+0.

002

33

60

9.528

ø35



A, B Service line DIN 3852 M26 x 1.5; 20 deep 350 O





Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring 3) devices and fittings.Depending on installation position, T4) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard.5)




Dimensions size 56, 63Port plate 48Threaded ports, side and rear

228

Y

11087

129

171198

AB

147

40

25

B A

682

T1

T2

150

�160

�ø13

.5 150

45°�45°�

40°�

31

30 50

7020

117

1032

ø125

-0.0

25

�128






M12

x 1

.75

1) 2

)

40

32

ø40

9.5

28

+0.

018

M12

x 1

.75

1) 2

)

ø35

+0.

002

38

60

9.528

ø40



A, B Service line DIN 3852 M33 x 2; 20 deep 350 O





Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring 3) devices and fittings.Depending on installation position, T4) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard. 5)




Dimensions size 80, 90Port plate 34SAE flange ports, bottom

40°�

138

148

221247

�ø25

52.4

4530

26.2

B

A

Y 89.5

158.

5

�180

45°�45°�

165

165

�13.

5

29 64

83

41

20132

3210

ø140

-0.0

25

T1

T2

�138


Drive shaftsA Splined shaft,



M16

x 2

1) 2

)

45

37

ø45

1236

+0.

018

M16

x 2

1) 2

)

ø40

+0.

002

43

70

1236

ø45



A, B Service line (standard pressure series) SAE J5184) 1 in 350 O






Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and 3)

fittings.Only dimensions according to SAE J518. A metric fastening thread is a deviation from standard.4)

Depending on installation position, T5) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard.6)




Dimensions size 107, 125Port plate 34SAE flange ports, bottom

268

26.2

52.4

75

ø25

174

A

B

Y

157149

243

A

B

�200

�17.

5

45°�45°�

190

190

85

40°�

36.5

23140

4010

65

ø160

-0.0

25

T2

T1

40

�150






M16

x 2

1) 2

)

50

42

ø50

1236

+0.0

18

M16

x 2 1

) 2)

ø45

+0.0

02

48.5

80

1236

ø50



A, B Service line (standard pressure series) SAE J5184) 1 in 350 O






Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring 3) devices and fittings.Only dimensions according to SAE J518. A metric fastening thread is a deviation from standard.4)

Depending on installation position, T5) 1 or T2 must be connected (see also page 15).The spot face can be deeper than specified in the appropriate standard. 6)




General

During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This must also observed following a relatively long standstill as the axial piston unit may drain back to the reservoir via the hydraulic lines.

Particularly in the installation position "drive shaft upwards" filling and air bleeding must be carried out completely as there is, for example, a danger of dry running.

The case drain fluid in the motor housing must be directed to the reservoir via the highest available drain port (T1, T2).

To achieve favorable noise values, decouple all connecting lines using elastic elements and avoid above-reservoir installa-tion.

In all operating conditions, the drain line must flow into the reservoir below the minimum fluid level.

Installation position

See the following examples 1 to 8. Further installation positions are available upon request.

Recommended installation position: 1 and 2.

InstructionsIn installation position "shaft upwards", an air bleed port R is necessary (please state in plain language when ordering - special version).

Below-reservoir installation (standard)

Below-reservoir installation is when the axial piston unit is installed outside of the reservoir below the minimum fluid level.

1 2ht min

hmin

T1

T2

ht min

hmin

T2

T1

3 4

T1

T2

ht min

hmin

R

ht min

hmin

T1

T2

Installation position Air bleed Filling

1 – T1

2 – T2

3 – T1

4 R T2

Above-reservoir installation

Above-reservoir installation is when the axial piston unit is installed above the minimum fluid level of the reservoir.

Recommendation for installation position 8 (drive shaft upward): A check valve in the drain line (cracking pressure 0.5 bar) can prevent draining of the motor housing.

5 6

T1

T2

L1

ht min

hmin

T2

T1

L1

ht min

hmin

7 8

L1T1

T2

ht min

hmin

RL1

0.

5 ba

r

T1

T2

ht min

hmin

Installation position Air bleed Filling

5 – T1 (L1)

6 – T2 (L1)

7 – T1 (L1)

8 R (L1) T2 (L1)

L1 Filling / air bleed

R Air bleed port (special version)

T1, T2 Drain port

ht min Minimum required immersion depth (200 mm)

hmin Minimum required spacing to reservoir base (100 mm)

Installation instructions


General instructions

A2FM RE 91001/09.07

The motor A2FNM is designed to be used in open circuit. –

The project planning, installation and commissioning of the axial piston unit – requires the involvement of qualified personnel.

Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly. If necessary, –these can be requested from Rexroth.

During and shortly after operation, there is a risk of burns on the axial piston unit. Take appropriate safety measures (e.g. by –wearing protective clothing).

Depending on the operating conditions of the axial piston unit (operating pressure, fluid temperature), the characteristic may –shift.

Service line ports: –

The ports and fastening threads are designed for the specified maximum pressure. The machine or system manufacturer must -ensure that the connecting elements and lines correspond to the specified operating conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.

The service line ports and function ports are only designed to accommodate hydraulic lines. -

The data and notes contained herein must be adhered to. –

The product is not approved as a component for the safety concept of a general machine according to DIN EN ISO 13849. –

The following tightening torques apply: –

Fittings: -Observe the manufacturer's instructions regarding the tightening torques of the fittings used.

Mounting bolts: -For mounting bolts with metric ISO thread according to DIN 13, we recommend checking the tightening torque in individual cases in accordance with VDI 2230.

Female threads in the axial piston unit: -The maximum permissible tightening torques MG max are maximum values of the female threads and must not be exceeded. For values, see the following table.

Threaded plugs: -For the metallic threaded plugs supplied with the axial piston unit, the required tightening torques of threaded plugs MV apply. For values, see the following table.

Ports Maximum permissible tightening torque of the female threads MG max

Required tightening torque of the threaded plugs MV

WAF size hexagon socket of the threaded plugsStandard Size of thread

DIN 3852 M12 x 1.5 50 Nm 25 Nm 6 mm

M14 x 1.5 80 Nm 35 Nm 6 mm

M16 x 1.5 100 Nm 50 Nm 8 mm

M18 x 1.5 140 Nm 60 Nm 8 mm

M26 x 1.5 230 Nm 120 Nm 12 mm

M33 x 2 540 Nm 225 Nm 17 mm


© This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be repro-duced or given to third parties without its consent.

The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.

Subject to change.

Bosch Rexroth AG HydraulicsAxial Piston UnitsGlockeraustraße 289275 Elchingen, GermanyPhone +49 73 08 82-0Fax +49 73 08 72 [email protected]/axial-piston-motors

Axial Piston Fixed Motor A2FNM RE 91007/02.11 1 for Fan ... · the viscosity classes VG 46 or VG 68; to be ... Permissible temperature difference DT ≤ 25 K between axial piston

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