Clutches - Boya Corporation Singapore
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Boya Singapore is a leading worldwide supplier of medium and heavy-duty clutches to the commercial vehicle industry. Our clutches are unmatched in terms of reliability, durability and performance. We are preferred by most original equipment manufacturers and are unquestionably the best value on the market today. Our engineers employ rigorous component and vehicle testing to ensure absolute performance excellence. And our state of the art precision manufacturing technology enables us to provide consistent high quality, clutch after clutch.
Only Boya Singapore offer a complete range of clutches to meet your performance and value needs. Whether it is an original equipment clutch in a new truck or a genuine Eaton aftermarket clutch, each is backed by Roadranger support.

Drawn cup roller clutches are designed to transmit torque between the
shaft and housing in one direction and allow free overrun in the
opposite direction. These designs utilize the same small radial section
as drawn cup needle roller bearings. The units are compact, lightweight
and operate directly on a hardened shaft. Proper mounting is easily
accomplished with a simple press fit in the housing. Clutches and clutch
and bearing assemblies are offered both in inch and metric nominal


Size range: 4mm – 30mm (1/8 in. – 1 in.) bore

Design Attributes

  • When transmitting torque, either the shaft or the housing can be the input member.
  • Rollers wedge against precisely formed interior ramps to positively transmit torque.
  • Transition from overrun to lock normally occurs with the minimal lost motion (backlash)
  • Drawn cup roller clutches are offered as clutch-only unit or as a clutch and bearing assembly.
  • Clutch-only units should be used with external radial support to
    hold the shaft and housing concentrically and carry radial loads.



  • Paper moving (copiers, fax machines, paper towel dispensers, etc.)
  • Exercise equipment
  • Appliances
  • Two-speed gearboxes
  • Rack indexing drives


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