Products > Precision > Miniature couplings

Miniature couplings

For encoders, servo motors and stepper motors - we have the right coupling for your applications. The range includes a very large selection of couplings in various designs, all with their unique properties.

Miniature couplings for servo motors

Here you will find the miniature couplings we consider most suitable for servomotors: Flexible, Torsionally rigid and Low weight.

Series MJT

• Claw coupling with PU intermediate ring
• Gap free
• Can be used as a flexible coupling in applications with high torques
• Can absorb torsional vibrations as well as radial and angular errors
• Three different hardnesses on the intermediate ring
• Resistant to oil and chemicals
• Identical properties regardless of direction of rotation
• Temperature range from –20 degrees to +60 degrees
• Stocked with finished axle hole from 3mm to 25mm
• Torque from 0,7 Nm to 160Nm

Series MDW

• Steel disc coupling
• High torsional stiffness
• Gap free
• Double lamellae absorb angular, radial and axial errors
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• Made of aluminum with stainless steel slats
• Stocked with finished axle hole from 5mm to 30mm
• Torque from 1,5 Nm to 25 Nm

Series MSX

  • Flange design
  • 8 sizes
  • Ball diameter 20 mm
  • Ball circle diameter from 311 to 1091 mm
  • Unhardened teeth

 

Also available with:

  • Reduced bearing play
  • Without holes in the rings
  • Double the number of fastening holes in the rings
  • With stock game shipped

 

Material in rings: C45N

  • 4 grease nipples evenly spaced
  • The mounting holes are evenly spaced
  • Delivered pre-lubricated

 

Miniature couplings for stepper motors

Here you will find the miniature couplings we consider most suitable for stepper motors: Backlash-free and High torsional stiffness.

Series MST and MSTS

• Gap free
• Absorbs angular, radial and axial errors
• High torsional stiffness
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• Made of aluminum or stainless steel
• Outer diameter from 8mm to 63mm
• Stocked with finished shaft hole from 2mm to 18mm - also for thumb shafts
• Torque from 0,2 Nm to 70 Nm
• Also in stainless steel

Series MW and MWSS

• Gap free
• Absorbs angular and axial errors
• Cannot absorb radial errors
• High torsional stiffness
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• Stocked with finished axle hole from 4mm to 18mm
• Manufactured in aluminum or stainless steel
• Torque from 0,2 Nm to 3,5 Nm

 

Series MJT

• Claw coupling with PU intermediate ring
• Gap free
• Can be used as a flexible coupling in applications with high torques
• Can absorb torsional vibrations as well as radial and angular errors
• Three different hardnesses on the intermediate ring
• Resistant to oil and chemicals
• Identical properties regardless of direction of rotation
• Temperature range from –20 degrees to +60 degrees
• Stocked with finished axle hole from 3mm to 25mm
• Torque from 0,7 Nm to 160Nm

Miniature connectors for encoders

Here you will find the connections we consider most suitable for encoders. Bellows type, Backlash-free, High torsional stiffness and Constant speed even in case of angular error.

Series MFB and MFBS

• Bellows coupling
• Gap free
• High torsional stiffness
• The bellows absorbs angular, radial and axial errors
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• The bellows are manufactured from aluminum bronze and the hubs from aluminium
• Also entirely in stainless steel
• Stocked with finished axle hole from 3mm to 14mm
• Torque from 0,6 Nm to 6 Nm

 

Series MWBS

• Gap free
• Absorbs angular and axial errors
• Cannot absorb radial errors
• High torsional stiffness
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• Stocked with finished axle hole from 4mm to 18mm
• Manufactured in aluminum or stainless steel
• Torque from 0,2 Nm to 3,5 Nm

 

Miniature couplings with steel lamellae

Miniature couplings with steel lamellae for general machine construction

Series MTD

• Steel disc coupling
• High torsional stiffness and low weight
• Gap free
• Identical properties regardless of direction of rotation
• Stainless steel lamellae absorb angular, radial and axial errors
• Stocked with finished axle hole from 3mm to 14mm
• Torque from 1 Nm to 4 Nm

Series MHS

• Steel disc coupling
• High torque capacity and torsional stiffness
• Gap free
• Stainless steel lamellae absorb angular errors
• Cannot absorb radial errors
• Identical properties regardless of direction of rotation
• Maintenance-free and resistant to oil and chemicals
• Torque from 4 Nm to 20 Nm

Series MHW

• Steel disc coupling
• High torque capacity and torsional stiffness
• Gap free
• Stainless steel lamellae absorb angular, radial and axial errors
• Maintenance-free and resistant to oil and chemicals
• Stocked with finished axle hole from 6mm to 25mm
• Torque from 4 Nm to 20 Nm

Miniature couplings, Oldham type

These couplings allow movement between the hubs in both axial and radial directions

Series MOL

Claw coupling that copes with large alignment errors. For shaft diameter ø 16 – 63 mm.
 

• Sliding movement between hub and intermediate part allows large angular and axial errors
• Minimal residual forces on shafts and bearings in case of misalignment
• High torsional stiffness
• Simple construction means easy assembly
• Very high resistance to oil and chemicals
• Temperature range from –20 degrees to +80 degrees
• Stocked with finished axle hole from 3mm to 25mm
• Intermediate part with two different hardnesses
• Torque from 1,4 Nm to 72 Nm

Series MHS

Compact claw coupling for large shaft displacements. For shaft diameter ø 8 – 32 mm.
 
• Compact
• Sliding movement between hub and intermediate part allows large angular and axial errors
• Minimal residual forces on shafts and bearings in case of misalignment
• High torsional stiffness
• Simple construction means easy assembly
• Very high resistance to oil and chemicals
• Temperature range from –20 degrees to +80 degrees
• Stocked with finished axle hole from 3mm to 14mm
• Torque from 0,4 Nm to 5,6 Nm
 
 

Rigid couplings

For completely rigid connections between axles. Requires good alignment but is cost-effective.

Series MRG and MRGS

Cup coupling for fully rigid joints. For shaft diameter ø 16 – 32 mm.

 

• Low weight and very low moment of inertia
• Maintenance-free and resistant to oil and chemicals
• Made of aluminum or stainless steel
• Stocked with finished axle hole from 3mm to 16mm
• Torque from 0,3 Nm to 2Nm

 

Series MLR and MLRS

Cup coupling for completely rigid connections. For shaft diameter ø 16 – 32 mm.
 
• Long torsionally rigid hubs
• For splicing shafts
• Manufactured in aluminum or stainless steel
• Alternative mountings – stop screw or clamping hub
• Stocked with finished axle hole from 6mm to 14mm
• Torque from 0,3 Nm to 2 Nm
• Also in stainless steel
 
 

Other connections

For completely rigid connections between axles. Requires good alignment but is cost-effective.

Series MSF

Elastic coupling for shaft diameter ø 16 – 32 mm. Cost-effective construction.
 

• Simple construction with intermediate ring of PU material
• Flexible with high misalignment values
• Almost free of backlash due to good fit between PU ring and hub
• Easy to assemble
• Resistant to oil and chemicals
• Electrically insulating
• Stocked with finished axle hole from 3mm to 14mm
• Intermediate ring can be delivered in two different PU materials with different temperature ranges
• The hubs are made of sintered metal (zinc alloy)
• Torque from 1 Nm to 9 Nm

Series XBW & XBWS

Stainless slats
Unchanged characteristic regardless of direction of rotation
Duralumin or stainless steel

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