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The simple design of the S-Flex couplings guarantees easy assembly and reliable performance. No special tools are needed to install or disassemble them. S-Flex couplings can be used in a wide variety of applications.

Main features
  • Easy installation
  • They do not need maintenance
  • Do not require lubrication
  • They dampen vibrations and control the blows
  • Torsional flexible
  • Double lace

The design of the S-Flex couplings consists of three parts. Two flanges with internal teeth fit a flexible elastomeric sleeve with external teeth. Each flange is connected to the respective axis of the actuator and driven device, and the torque is transmitted through the flanges through the sleeve. The misalignments and torsional loads are absorbed by the deflection of the shear stress in the sleeve. The shear characteristics of S-Flex couplings are ideal for absorbing impact loads.

Lovejoy's S-Flex couplings offer a variety of flange and sleeve combinations that can be custom-assembled for each specific application.

We have 13 sizes with torque capacities ranging from 6.78 Nm to 8189 Nm. The S-Flex flanges are available in five models made of injected cast zinc or cast iron. The flanges are made of EPDM, neoprene or Hytrel® rubber, which meet a wide variety of application requirements.

Equivalent to Sure-Flex couplings
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