BASIC FUNCTIONS - RDG Media · 2019. 12. 23. · 1. Brake Magnet Contains coil and friction material, mounted to a bulkhead or wall 2. Brake Armature Plate When the coil is energized,

CLUTCH - A rotary mechanical device that is used to control the transmission of torque from one shaft to another

BRAKE - A rotary mechanical device that is used to control the motion of a single shaft

BASIC FUNCTIONS 1. Braking、Holding A clutch may be used to connect or disconnect a driven shaft to/from a driving shaft, as required, while under load. 2. Coupling 、Releasing A clutch may be used to connect or disconnect a driven shaft to/from a driving shaft , as required, while under load 3. Speed Changing Clutches may be integrated into a transmission to allow changes in output speed and torque while the driving shaft remains under load. 4. Reversing A pair of clutches may be integrated into a reversing transmission to allow changes in the direction of rotation of the output while the driving shaft remains under load. 5. Rapid Cycling Depending upon system inertia, cycle rates of

several hundred per minute can be achieved while maintaining precise control. The res- ponse of NIIKA clutches & brakes is truly exceptional. 6. Positioning、Indexing Clutch/ brakes may be used to provide predetermined feeding and automatic positioning. 7. Inching Clutch/ Brakes may be used for jogging or inching during machine set-up. 8. Soft starting A clutch may be used as a soft-start device to reduce motor inrush current, and to reduce impact upon the load. 9. Overload Protection A clutch may be used as a torque fuse, to protect driven equipment during an overload condition.

round-shaped plate spring

armature plate

magnetic path

airgap DE-EN

ERG

IZED

round-shaped plate spring

armature plate

magnetic path

airgap

ENER

GIZED

ENER

GIZED

DE-EN

ERG

IZED

Energizing the field coil with D.C. power sets up a powerful magnetic field. The lines of magnetic force bridge the air gap between the rotor & the coil creating a powerful electromagnet that pulls in the armature with considerable force. Torque is transmitted from the pulley, through the anti-backlash round spring , to the armature. After the load has been accelerated the armature is locked firmly in place against the rotor which is keyed to the shaft. In this way, torque is transmitted to /from t he pulley to the shaft. De-energizing the field coil causes the magnetic field to disappear very rapidly , which allows the armature plate to be retract- ed away from the rotor. This allows the clutch to disengage quickly and completely.

Energizing the field coil with D.C. power sets up a powerful magnetic field. The resulting electromagnetic force pulls in the armature with considerable force. Torque is trans- mitted from the brake magnet , through the anti-backlash, round spring to the hub which is keyed to the shaft. Fric- tion between the armature and brake magnet dissipates the kinetic energy of the rotating load. De-energizing the coil causes the magnetic field to disappear very rapidly, which allows the armature plate to be retracted away from the brake magnet. This allows the brake to disengaged quickly and rapidly, and the shaft to rotate freely.

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NIIKA ®

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1. Clutch Magnet contains a fully encapsulated coil. Mounted to a wall or bulkhead 2. Rotor keyed to a shaft. A part of the magnetic circuit, the pole faces of the

rotor attract the armature. 3. Armature plate When the coil is energized, the magnetic force, allowing torque to

be transmitted on/from the armature plate to the keyed rotor. 4. Coil Source of magnetic field when D.C. power is applied. 5. Friction Material Carefully chosen by niika , the friction material greatly extends the

life of the unit. 6. Round Spring connect/ disconnects the armature to/from the load. Assures

complete disengagement when current to the coil is interrupted. transmits torque with no backlash, and enables vertical mounting

7. Retaining Ring Groove Allows the clutch magnet field to be piloted onto a bearing 8. Keyway The rotor is keyed to the shaft 9. Lead Wires Connected to D.C. power.

1. Brake Magnet Contains coil and friction material, mounted to a bulkhead or wall 2. Brake Armature Plate When the coil is energized, the armature plate is drawn up against

the magnet with considerable magnetic force, allowing torque to be transmitted to the armature hub.

3. Uniformly-stressed Spring 4. Coil 5. Friction Material 6. Mounting Flange Secured to a bulkhead or wall

FCD - Clutch

MCS - Clutch

FBH - Brake

MBF- Brake

1. Clutch Magnet Bearing mounted, contains a fully encapsulated coil. The attached

anti-rotation tab prevents rotation. 2. Clutch rotor keyed to the shaft. 3. Armature Plate When the coil is energized, the armature plate is drawn up against the rotor with substantial magnetic force, allowing torque to be transmitted to/from the armature plate to the keyed rotor. 4. Coil Source of magnetic field when D.C. power is applied. 5. Friction Material Carefully chosen by NIIKA, the friction material greatly extends the life of the unit. 6. Uniformly-stressed spring Connects/ dis-connects the armature to/ from the load. Assures

complete disengagement when current to the coil is interrupted. Transmits torque with no backlash, and enables vertical mounting.

7. Sealed Bearing

1. Brake Magnet Contains coil and friction material, mounted to a bulkhead or wall. 2. Brake armature plate When the coil is energized, the armature plate is drawn up against

the magnet with considerable magnetic force, allowing torque to be transmitted to the armature hub

3. Armature Hub. Key to the shaft 4. Coil Fully encapsulated. 5. Friction material Carefully chosen by NIIKA, the friction material greatly extends the

life of the unit. 6. Round Spring Connects/ disconnects the armature to/from the load. Assures

complete disengagement when current to the coil is interrupted. Transmits torque with no backlash, and enables vertical mounting.

7. Retaining Ring Groove Allows the clutch magnet field to be piloted onto a bearing 8. Keyway Armature hub is keyed to the shaft 9. Lead Wires Connected to D.C. power.

NIIKA ®

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HBN installation Wall- mounted, hub to the inside

MBF installation Wall- mounted,

hub to the outside

HBH installation Wall- mounted, hub to the outside

HB Armature Hub for MCF、MCS、MBF mounted

Magnet body Armature plate

HB 0.6 1.2 2.5 5 10 20

Bore (mm) 12 15 15 20 20 25 25 30 30 40 40 50

Keyway (mm) 4x13.5 5x17 5x17 5x22 5x22 7x28 7x28 7x33 7x33 10x43.5 10x43.5 12x53.5

Weight 35 g 74 g 147 g 260 g 540 g 1150 g

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NIIKA ®

FBD/FBH/FBN 0.6 1.2 2.5 5 10 20 40

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 36

Exciting voltage 24 DV-V 24 24 24 24 24 24

Capacity (20℃) 11 W 15 20 25 35 45 60

Bore (mm) 12 15 15 20 20 25 25 30 30 40 40 50 50 60

Keyway (mm) 4x13.5 5x17 5x17 5x22 5x22 7x28 7x28 7x33 7x33 10x43.5 10x43.5 12x53.5 12x53.5 15x65

Weight - FBD 0.4 kg 0.4 0.4 0.4 0.4 0.4 0.4

“ - FBH,FBN 0.5 kg 0.5 0.5 0.5 0.5 0.5 0.5

MBF 0.6 1.2 2.5 5 10 20

Static torque 0.6 kgm 1.1 2.5 5 10 20

Exciting voltage 24 DC-v 24 24 24 24 24

Capacity (20℃) 11 W 15 22 30 38 50

Weight 0.35 Kg 0.7 1.35 2.3 4.5 8.2

FBD Flange- mounted brake Direct- mounted armature

FBH Flange- mounted brake Hub-mounted armature outer boss

FBN Flange- mounted brake

Hub-mounted armature inner boss

MBF Flange- mounted brake

Direct- mounted armature

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FCB installation Wall- mounted, sprocket mounted on armature hub

FCD installation Wall- mounted attached to V- pulley

FCH installation Wall- mounted, couples- two shafts

MCS installation Shaft- mounted, armature attached to V- pulley

CAUTION

NIIKA ®

1. Make sure the tolerance for the bore is accurate before install the unit.

2. All the unit will attach spare parts including : protector x 1pc, 3pcs x spacers

MCS & MBF will attach spare parts including: protector x 1pc,

armature fixture = spacer x 3pcs, 3 spacer+3 screw

3. Don’t strike the edge of unit when install , to avoid any out of shape

4. Concentricity for armature plate and magnet body is the priority issuing when install it.

5. Adopt sleeve to segregate the gap between armature plate and magnet body , is essentially required.

6. The power source for these series of unit is DC 24V. Torque will be effected if the power source is insufficient

FCB/FCD/FCH 0.6 1.2 2.5 5 10 20 40

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 36

Rotor bore (mm) 12 15 15 20 20 25 25 30 30 40 40 50 50 60

Rotor Keyway (mm) 4x13.5

5x17 5x17 5x22 5x22 7x28 7x28 7x33 7x33 10x43.5 10x43.5 12x53.5 12x53.5 15x65

FCB shell keyway ( “ ) 4x40 5x47 5x57 7x68 7x33 10x78.5 12x95

Weight – FCB 0.5 kg 0.9 1.8 3.7 6.8 13.0 22.0

Weight – FCD 0.6 kg 1.1 2.0 3.5 6.9 14.0 23.5

Weight – FCH 0.8 kg 1.4 2.5 4.3 8.0 15.0 25.0

MCS 0.6 1.2 2.5 5 10 20 Static torque 0.6 kgm 1.2 2.5 5 10 20

Exciting voltage 24 DC-v 24 24 24 24 24 Bore diameter (mm) 12 mm 15 20 25 30 40 Keyway b x t (mm) 4x1.5 mm 5 x 2 5 x 2 7 x 3 7 x 3 10x3.5

11 W 15 22 30 38 50 Weight 0.35 Kg 0.7 1.35 2.3 4.5 8.2

FCD Flange- mounted clutch

Direct- mounted armature

FCB Flange- mounted clutch Bearing- mounted armature

MCS Shaft- mounted Clutch Direct- mounted Armature

FCH Flange- mounted clutch

Hub- mounted armature

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NIIKA ®

FMP Clutch/ Brake module, Foot- mounted, split- shaft It is clutch/brake module comes preassembled and pre-adjusted and combines clutch / brake with an in-line split shaft. The housing of this foot- mounted, drip- proof module is made from a light alloy. Because both input & output shafts are supported by a pair of sealed ball bearings , this module is suitable for parallel- shaft drives where overhung loads are present, as well as in-line shaft drives that use flexible couplings. It excels in high-cycle-rate applications , is easy to install, and requires little maintenance. FMP 0.6 1.2 2.5 5 10 20

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 Exciting voltage 24 DC-v 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 Shaft diameter 11 mm 14 19 24 28 38 Keyway : b x t 4 x 4 mm 5 x 5 5 x 5 7 x 7 7 x 7 10x 8

Weight 2.3 Kg 4.7 7.5 14.6 25.5 48

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FMT

FMX

FMR Clutch/ Brake module, Foot- mounted, through- shaft Clutch / brake module features a matched clutch and brake mounted on a bearing-supported through shaft. The housing of this foot- mounted unit is made from a light alloy. Simpler than the FMP module. It is an open design that allows fro optimum heat dissipation. It has a bearing- supported input hub that allows both ends of the shaft to be used independently as sources of output power. It is fully assembled & pre-adjusted. All bearings are sealed. Critical alignment is not necessary during installation. It is suitable for parallel-shaft drive applications, and is easy to install.

FMR 0.6 1.2 2.5 5 10 20 40

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 36 Exciting voltage 24 DC-v 24 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 60 Shaft diameter 11 mm 14 19 24 28 38 42 Keyway : b x t 4 x 4 mm 5 x 5 5 x 5 7 x 7 7 x 7 10x 8 12x8

Weight 1.7 Kg 3.0 6.3 10.6 20.0 37.0 66.6

FMT Double Clutch module, Foot- mounted, through- shaft Clutch / Clutch module features a pair of matched clutches mounted on a bearing- supported through shaft. The housing of it is made from a light alloy, and the open design allows for optimum heat dissipation. All parts are pre-adjusted and pre-assembled. It’s possible to select either cutch hub as an input & the shaft as an output, or the shaft as an input & the clutch hubs as outputs. All bearings are sealed. It’s ideal for building a transmission or a reversing drive, and can achieve high cycle rates.

FMT 0.6 1.2 2.5 5 10 20 40

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 36 Exciting voltage 24 DC-v 24 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 60 Shaft diameter 11 mm 14 19 24 28 38 42 Keyway : b x t 4 x 4 mm 5 x 5 5 x 5 7 x 7 7 x 7 10x 8 12x8

Weight 1.9 Kg 3.6 7.2 12.5 22.5 40.5 72.6

FMX Double Clutch/ Brake module, Foot- mounted, through- shaft Clutch / Clutch / Brake module features a pair of matched clutches & a matched brake mounted on a bearing - supported through shaft. The housing of it is made from a light alloy and the open design allows for optimum heat dissipation. All parts are pre-adjusted and pre-assembled, and all bearings are sealed. The clutch hubs are driven at different speeds and/or directions in order to build a transmission or reversing drive. The brake is used to stop and hold the output. It can be used to achieve high cycle rates.

FMX 0.6 1.2 2.5 5 10 20

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 Exciting voltage 24 DC-v 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 Shaft diameter 11 mm 14 19 24 28 38 Keyway : b x t 4 x 4 mm 5 x 5 5 x 5 7 x 7 7 x 7 10x 8

Weight 4.2 Kg 6.5 9.8 18 30.5 60

FMP

FMR

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NIIKA ®

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MMP Clutch/ Brake module, Single-flange-mounted, split- shaft Clutch / Brake module comes pre-assembled and pre-adjusted, and combines a clutch / brake on a split shaft. It foot- mounted module has a female input flange that make it possible to mount an I.E.C. standard motor directly to the input of the clutch / brake. The double- bearing- supported output shaft is suitable for parallel- shaft drives or for mounting a flexible coupling. The drip - proof housing is made of a light alloy, all bearings are sealed. It is suitable for high-cycle- rate applications.

MMP 0.6 1.2 2.5 5 10 20

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 Exciting voltage 24 DC-v 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 Shaft diameter 11 mm 14 19 24 28 38 Keyway : b x t 4x12.5 mm 5 x16 6x21.5 8x27 8x31 10x 41.5

Weight 2.8 Kg 5.5 9.4 16 28 52

MMP

TMP Clutch/ Brake module, Double-flange-mounted, split-shaft Clutch / Brake module comes pre-assembled & pre- adjusted, and combines a clutch/ brake on a split shaft. It has a female input that mounts an I.E.C. standard motor, and a male output that mounts directly to a reducer or other power transmission component. The drip- proof housing is made of a light alloy, all bearings are sealed. It is suitable for high-cycle-rate applications.

TMP

SMP Clutch/ Brake, Shaft- mounted Clutch / Brake combines a matched clutch and brake on a hollow shaft. The open design allows for maximum cooling. The light alloy frame has an anti-rotation tab, and the armature can be mounted directly to sheaves, sprockets or gears. Although the design of this unit is space saving & low cost, it is easy to install and is suitable for high- cycle- rate applications.

SMP

TMP 0.6 1.2 2.5 5 10 20

Static torque 0.55 kgm 1.1 2.2 4.5 9 17 Exciting voltage 24 DC-v 24 24 24 24 24 Capacity (20℃) 11 W 15 20 25 35 45 Shaft diameter 11 mm 14 19 24 28 38 Keyway : b x t 4x12.5 mm 5 x16 6x21.5 8x27 8x31 10x 41.5

Weight 2.8 Kg 5.6 9.5 16.8 29.5 53.5

SMP 2.5 5 10 20 40

Static torque 2.2 kgm 4.5 9 17 36 Exciting voltage 24 DC-v 24 24 24 24 Capacity (20℃) 20 W 25 35 45 60 Shaft diameter 20 mm 25 35 40 48 Keyway : b x t 5 x 2 mm 7 x 3 10 x 3.5 10x3.5 12x3.5

Weight 2.8 Kg 5.6 9.5 16.8 29.5

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NIIKA ®

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FMP-E Clutch/ Brake module Enclosed Foot- mounted, Split- Shaft

MMP-E 7 15 30 60 120 250 Static torque 0.7 kgm 1.5 3 6 12 24

Exciting voltage 24 DV-V 24 24 24 24 24 Capacity (20℃) 15 W 11W 20 16 28 21 35 28 50 38 60 50 Input Bore (mm) 11 14 14 19 19 24 24 28 28 38 38 42

Input Keyway (mm) 4x4 5x5 5x5 6x6 6x6 8x7 8x7 8x7 10x8 10x8 12x8 Output Bore (mm) 11 14 14 19 19 24 24 28 28 38 38 42

Output Keyway (mm) 4x4 5x5 5x5 6x6 6x6 8x7 8x7 8x7 10x8 10x8 12x8 Weight 3 kg 5 9 14 25 54

MMP-E Clutch/ Brake module Enclosed Single- Flange- mounted, Split- Shaft

TMP-E 7 15 30 60 120 250 Static torque 0.7 kgm 1.5 3 6 12 24

Exciting voltage 24 DV-V 24 24 24 24 24 Capacity (20℃) 15 W 11W 20 16 28 21 35 28 50 38 60 50 Input Bore (mm) 11 14 14 19 19 24 24 28 28 38 38 42

Input Keyway (mm) 4x4 5x5 5x5 6x6 6x6 8x7 8x7 8x7 10x8 10x8 12x8 Output Bore (mm) 11 14 14 19 19 24 24 28 28 38 38 42

Output Keyway (mm) 4x4 5x5 5x5 6x6 6x6 8x7 8x7 8x7 10x8 10x8 12x8 Weight 3.4 kg 5.5 9.7 14.7 26.3 62

FMP-E 7 15 30 60 120 250 Static torque 0.7 kgm 1.5 3 6 12 24

Exciting voltage 24 DV-V 24 24 24 24 24 Capacity (20℃) 15 W 11W 20 16 28 21 35 28 50 38 60 50

Bore (mm) 11 14 14 19 19 24 24 28 28 38 38 42 Keyway (mm) 4x4 5x5 5x5 6x6 6x6 8x7 8x7 8x7 10x8 10x8 12x8

Weight 2.6 kg 4.5 8 13 23.5 46

TMP-E Clutch/ Brake module Enclosed Double- Flange- mounted, Split- Shaft

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NIIKA ®

Most generally, clutch and brake are selected according to torque. Accordingly, tables 1, 2 & 3 are provided as a quick selection guide. For Applications below 100rpm, torque can be calculated by use of the torque formula given. For applications involving relatively high load inertias, and/ or high cycle-rates, the heat dissipation capacity of the selected unit must be taken into consideration

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Load Condition Type of Machines Factor Low inertia, low cycle, constant load Small- sized machine tools, office equipment 1.5

Normal inertia, normal use Medium- sized machine tools, wood working machines, small presses, fans 2

High inertia, high speed operation,Variable load Machine tools, medium- sized presses, weaving machines, printing machines, Conveyors 2.5

High inertia, heavy load accompanied by shock Heavy-duty presses, large- sized machine tools, rolling machines, paper making machines 3.5

TABLE 3 : Safety Factor

Micro Size

Large Size

Size 0.6

Size 1.2

Size 2.5

Size 5

Size 10 Size 20

Size 40

Micro Size

Large Size

Size 0.6

Size 1.2

Size 2.5

Size 5

Size 10

Size 20

Size 40

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