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.
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
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
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
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
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
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
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
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
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