GMN ball bearing freewheel clutch units are suitable for low and medium torque requirements. The FK, FKN and FKNN series have an integrated ball bearing and are also optionally available pre-lubricated with grease and seal rings (2RS models). GMN ball bearing freewheel clutch units without seals are suitable for either oil or grease lubrication. All GMN ball bearing freewheel clutch units can be used as indexing clutches, backstops or as overrunning clutches.
Freewheel clutches from the FK (2RS) series are ball bearing freewheel clutch units with keyway connection. They are optionally available sealed on both sides (FK 2RS) or without a seal (FK).
Characteristics:
Dimensions: dimensions in accordance with bearing series 62 (DIN 625)
Width: 12 / 14 / 15 / 16 / 17 / 18 mm
Operating temperature: max. 140 °C; higher temperatures on request
Operation temperature design 2RS with RS seals: max. 110 °C
Lubrication: oil or grease lubrication; delivered with corrosion protection
Lubrication series FK 2RS with seals: operative lifetime grease lubrication
Components:
Insert element: FE 400 Z2
Raceways: Bearing steel, hardened and ground
Inner ring: Press fit
Outer ring: Press fit
Ball bearing: integrated
Roller bearing: —
Lubrication: Lifetime grease lubrication*
* Series FK 2RS (with RS seals)