Claw and servo couplings

Claw couplings, also known as elastic couplings, are an optimal solution for positioning applications, no matter how high a torque is needed to be transmitted. Claw couplings are often used to correct different types of alignment errors. 

Claw and servo couplings

Claw couplings, also known as elastic couplings, are an optimal solution for positioning applications, no matter how high a torque is needed to be transmitted. The key element of the claw couplings is an elastomer part inserted between two hub halves. The elastomer insert transmits torque from 0.5 to 25,000 Nm with low backlash due to a keyway connection, and hence compensates for axial, lateral and angular shaft misalignment. When the correct size and hardness of the elastomer insert is selected, it will optimise the complete drive train and at the same time show important characteristics such as vibration damping, torsional stiffness, and thermal stability.

Elastic jaw couplings from R+W

Claw and servo couplings

We offer elastic jaw couplings from R+W couplings. They are characterised by lateral mounting, easy installation and removal, press fit design and high clamping pressure. The elastic jaw couplings comes in torques from 0.5 to 25,000 Nm.

EKH - Elastomer coupling with split clamping hub
  • 4 - 25,000 Nm
  • lateral mounting possible
  • concentrically machined hubs
  • vibration damping
  • electrically isolating
  • easy mounting
  • backlash free
EK1 - Elastomer spider coupling with key way connection
  • 0.5 - 25,000 Nm
  • economical design
  • concentrically machined
  • vibration damping
  • electrically isolating
  • press fit design
  • low backlash, due to keyway connection
EK6 - Elastomer coupling with conical clamping ring
  • 4 - 25,000 Nm
  • high clamping forces
  • concentrically machined hubs
  • vibration damping
  • electrically isolating
  • backlash free
  • press fit design
  • axial mounting possible

 

Elastomer couplings from KBK

Claw and servo couplings

From KBK antriebstechnik we offer elastomer couplings with a torque range from 0.5 to 525 Nm and a shaft diameter from 2 to 60 mm

KBE1 - Servo insert coupling with set screws
  • Backlash-free
  • For shaft diameters from 2-60 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Very cost-effective design 
  • Torque range: 0.5-525 Nm
KBE2 - Servo insert coupling with clamping hub
  • Backlash-free 
  • For shaft diameters from 2-55 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Easy assembly with friction-locked clamp hubs 
  • Torque range: 0.5-525Nm
KBE2C - Servo insert coupling with clamping hub, compact
  • Backlash-free
  • For shaft diameters from 3-45 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Easy assembly with friction-locked clamp hubs 
  • Torque range: 1.2-325 Nm
KBE2H- Servo insert coupling with split hub
  • Backlash-free
  • For shaft diameters from 4-55 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Radial assembly! Due to the split hub design shafts can be mounted and adjusted before the assembly of the coupling 
  • Torque range: 12,5-525 Nm
KBE2HC - Servo insert coupling with split hub
  • Backlash-free
  • For shaft diameters from 4-57 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Radial assembly! Due to the split hub design shafts can be mounted and adjusted before the assembly of the coupling 
  • Torque range: 12.5-525 Nm 
  • Compact design
KBE2D - Servo insert coupling with clamping hub, double cardanics
  • Backlash-free
  • For shaft diameters from 4-45 mm 
  • Double cardanic version 
  • Easy assembly with friction-locked clamp hubs 
  • Torque range: 1.2-325 Nm
KBE3 - Servo insert coupling with outer conical hub
  • Backlash-free
  • For shaft diameters from 8-60 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Very accurate true running, suitable for high speed applications 
  • Torque range: 12,5-525 Nm
KBE3C - Servo insert coupling with outer conical hub, compact
  • Backlash-free
  • For shaft diameters from 6-55 mm 
  • Vibration reducing, compensates shaft misalignment, axial pluggable! 
  • Characteristics of the coupling can be modified by using different spider elements! 
  • Very accurate true running, suitable for high speed applications 
  • Torque range: 12,5-525 Nm

 

Claw couplings from R+L

Claw and servo couplings

Also, we are able to offer claw couplings from R+L Hydraulics (formerly known as Raja-Lovejoy GmbH). The claw couplings from R+L Hydraulics requires no maintenance and has an operating temperature range between -40 °C and +100 °C. Short temperature peaks up to +120 °C are admissible. Torque range is as standard: 7.5 - 6650 Nm.

SPIDEX® - Elastic coupling with torsional elasticity
  • Torsional elasticity
  • Damping
  • Axial pluggable
  • Safe against breakdown
  • Hub material: aluminium, die-cast aluminium, cast iron, SG iron, sintered steel and steel
  • No maintenance
  • Atex classification possible