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FKNN 6208 Ball Bearing Freewheel Clutch Unit

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Part Number FKNN 6208
Series FKNN
Spring Type Z (Tension)
Type Ball Bearing Freewheel Clutch Unit
Sealed Optional (None or 2RS)
Integrated Ball Bearing Yes
Integrated Roller Bearing No
Lubrication Oil or Grease
GMN FKNN 6206 2 RS clutch below two drawings representing the width and diameter of the clutch.


Bore Diameter d [mm] 40
Outer Diameter D [mm] 80
Width W [mm] 18

Geometric Data

Outer Ring Keyway Yes
Inner Ring Keyway Yes
Weight [kg] 0.440
Edge Radius 1.500
Inner Ring Keyway Width b [mm] 12
Inner Ring Keyway Depth t [mm] 3.300

Shaft & Housing Tolerances

Shaft & Housing Chamfer 1mm × 15°
Shaft Tolerance n6
Housing Tolerance N7


Nominal Torque T [N⋅m] 267
Nominal Torque T [ft⋅lb] 196.900
Max. Indexing Frequency [Hz] 10
Max. Speed - Sealed 1,900
Max. Speed - Unsealed 3,700
Max. Dynamic Radial Load Cdyn [N] 8,902
Max. Static Radial Load Cstat [N] 7,752
Max. Temperature - Sealed [°C] 110
Max. Temperature - Unsealed [°C] 140
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