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Elastomer Couplings (Claw Couplings)

Technical data overview

Torque (TA)

0.7 Nm - 2000 Nm

Bore diameter (ØD)

3 mm - 100 mm

Shaft connection

clamping hub, conical bushing, setscrews, splitted hub, expanding cone

max. torsional speed (n)

35000 1/min

Elastomer couplings are plug-in compensating couplings for backlash-free, angle-accurate transmission of torques in direct drives. The polyurethane elastomer star, available in different Shore hardnesses, has a vibration-damping and electrically insulating effect.

Various designs are available for shaft connection: clamping hubs, conical bushings, half-shell hubs, spreader cone systems, and inexpensive threaded pins. These variants allow flexible adaptation to different shaft geometries and mounting requirements.

Elastomer couplings are used successfully in many industries, including automation and robotics, mechanical and plant engineering, aerospace, and the textile industry. They combine high operational reliability, long service life, and easy installation with precise torque transmission and optimal vibration damping—ideal for demanding applications in direct drives.

Products

Torque (Nm)

Bore diameter (mm)

Shaft connection

max. torsional speed (1/min)

Elastomer Couplings (Claw Couplings) - Typ EWD

EWD | standard series

Torque (TA)

8 Nm - 2000 Nm

Bore diameter (ØD)

6 mm - 90 mm

Shaft connection

clamping hub

max. torsional speed (n)

29000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWE

EWE | for high-speed applications

Torque (TA)

10 Nm - 2000 Nm

Bore diameter (ØD)

6 mm - 85 mm

Shaft connection

conical bushing

max. torsional speed (n)

35000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWJT

EWJT | for robotics and automation

Torque (TA)

0.7 Nm - 12.5 Nm

Bore diameter (ØD)

3 mm - 14 mm

Shaft connection

setscrews

max. torsional speed (n)

27000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWJTC

EWJTC | for robotics and automation

Torque (TA)

0.7 Nm - 12.5 Nm

Bore diameter (ØD)

3 mm - 12 mm

Shaft connection

clamping hub

max. torsional speed (n)

11000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWN

EWN | simple assembly

Torque (TA)

15 Nm - 2000 Nm

Bore diameter (ØD)

7 mm - 100 mm

Shaft connection

splitted hub

max. torsional speed (n)

19000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWOH

EWOH | Compensation of lateral misalignment

Torque (TA)

1 Nm - 15 Nm

Bore diameter (ØD)

3 mm - 19 mm

Shaft connection

setscrews

max. torsional speed (n)

8000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWOHC

EWOHC | compensation of lateral misalignment

Torque (TA)

1 Nm - 15 Nm

Bore diameter (ØD)

3 mm - 19 mm

Shaft connection

clamping hub

max. torsional speed (n)

8000 1/min

Elastomer Couplings (Claw Couplings) - Typ EWT

EWT | for hollow shaft drives

Torque (TA)

8 Nm - 600 Nm

Bore diameter (ØD)

6 mm - 70 mm

Shaft connection

clamping hub
expanding cone

max. torsional speed (n)

29000 1/min