Type ASK - Combined Roller Bearing and Roller Ramp Clutch

Please click image to order a catalogue.

The ASK series are roller ramp freewheels supported by two rows of roller bearings, the complete unit being within a dust proof enclosure conforming to 60 series bearing dimensions. They are supplied ready grease lubricated. Torque transmission is by press fit with outer housing to K6 tolerance and shaft to h6 or j6. These units must not be subject to axial loading.
Type GFK - Ball and Roller Bearing Sprag Clutches
The GFK clutch combines a sprag unit with a roller bearing and ball bearing into a unit which dimensionally equates to a 59 series bearing. The design provides high torque capacity and bearing strength within a compact unit. Torque transmission is by press fit with outer housing bore to R6 tolerance and shaft to p5 tolerance. The unit has operating temperature range of 40°C to + 130°C, and is supplied ready grease lubricated. For dusty environment external sealing is required. Ball and Roller Bearing Sprag Clutches PDF Catalogue

Single Revolution Clutches These clutches have rollers contained in a cage which is connected to the operating cam. The cam is sprung loaded to push the rollers up the ramp to provide drive, but if the cam is stopped by a trip pawl it fires the rollers out of engagement, thereby disengaging the drive. Clutches can provide a single revolution, multiple revolutions or a fraction of a revolution from a constantly rotating input. Extremely accurate positional control is provided with no accumulative error. Two types of clutch are offered - the BAT series for maximum torque capacity, and CTK series for higher speed applications and replacement on existing machinery. Single Revolution Clutches PDF Catalogue
Backstop Clutches - Types CR/BW and CR/BV Most types of freewheels can be used for backstop applications, but these clutches have been specially designed for this application. Mainly intended for fitting on Conveyor or Elevator headshafts their design makes easy installation on new or existing units.
CR/BW and BV Series incorporate a torque arm with slot to engage with a bolt fixed to machine frame. Units are greased for life with labyrinth seals ideal for dust laden environments. Units can be mounted on horizontal or vertical shafts, and are available with bore range 20mm to 120mm with torque capacity to 18,450 Nm. CR/BW Series uses sprags to provide a high torque capacity, at low unit cost. Bearing support is plain metal bushes with seals selected to retain grease and exclude dust and moisture. CR/BV Series employs roller ramp principle for extended wear life and faster operating speeds. Sealing is by shield protected labyrinth seals. Can be used for slow speed indexing. When mounting these units it essential to ensure no axial loading occurs, and there is a minimum 0.2mm clearance around locking pin. Backstop Clutches - Types CR/BW and CR/BV PDF Catalogue