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Outside Size
Width Size

CSK20 One-Way Sprag Clutch Freewheel Bearing FK6204

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CSK20 bearing is Precision One Way Freewheel Overrunning Clutch Both Sides Tefflon Sealed and pre-lubricated with Grease.

Sizes: ID 20mm x OD 47mm x W 14mm

Match#: BB20, FK6204, ZZ6204, KK20, REUK20ZZ

  • Bore: ID 20mm
  • Outer: OD 47mm
  • Width: W 14mm
  • Torque capacity: 50Nm
  • Max overrunning speed: 6000rpm 
  • Bearing load dynamic: 9.40kN (C)
  • Bearing load static: 4.46kN (C)
CSK20 Specs 

Used in: Industrial Washing Machines, Clay Pigeon (Trap) throwers, etc.

CSK20 Sprag Clutch One Way Bearing can be used as freewheels and can be used in backstop, overrunning or indexing applications. Freewheel bearings are characterized by their ability to turn in one direction only and thus transmit torque whilst having a zero backlash. They are supplied filled with grease and are low maintenance. The torque is transmitted on the inner and outer race by an external key way to the housing and onto the shaft by an internal key way.



Dimensions & Material
Inner Diameter:
Outer Diameter:
Chrome Steel SAE-52100
Chevron SRI-2 Grease
ID 20mm x OD 47mm x W 14mm
Product Details
Closure Type:
2TS PTFE Sealed on both sides
Interchange Numbers:
BB20, FK6204, ZZ6204, KK20, REUK20ZZ

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CSK20 bearing KK20 clutch
CSK20 One-Way Sprag Clutch Freewheel Bearing FK6204

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