Max-C® Coupling

Mac C Couplings



The MAX-C® resilient coupling is available in three styles-K2, WB and CB. Fourth style-UB (urethane cylindrical block design) has been 
superseded by the K2, but is still available for sale.

K2: Urethane wedge shaped blocks. Used on electric motor driving cranes, pumps, feed rolls, fans, conveyors bow thruster, manipulators, etc.

WB: Rubber block in wedge shape. The rubber blocks come in various shore hardness and are typically custom-engineered for an application.
They are used on synchronous and variable frequency motors driving, for example:


  • Compressors
  • Klin drives
  • Steel mill main drives
  • Crushers
  • ID and FD fans

These come in a wide range of sizes and torque capacity.

CB: Rubber blocks are cylindrical shape also ,available in various hardness, like the WB design. They are available in various sizes and
torque ranges, typically custom-engineered.

They are primarily used in the following applications:


  • Diesel engines driving generator sets
  • Fire pumps
  • Torque converters
  • Marine drives
  • Drill rigs
  • Main propulsion




  • Provides resilience and damping for severe applications.
  • Can increase drive train and gear component life.
  • Does not need routine maintenance.
  • Available up to 79.5" (2.2M) OD.
  • Peak torque capacity of 56 million in-lb. (6383 kN-m).
  • Maximum bore up 34" (864mm).
  • Off-the-shelf and custom designed for application.
  • Resilient blocks available in rubber or urethane - depending on the application.


Max C Couplings
Max C Couplings
Max C Couplings


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