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TFS Series Cam Clutch is a sprag type clutch designed for press fit installation. Sprag type designs typically have a higher torque capacity than a similarly sized ramp & roller type clutch. TFS has two vertical keyways on the outer race to assist with locating. Outside dimensions are the same as Series 63 ball bearings. This design is ideal for general inner or outer race overrunning applications. Since the TFS Series does not include an integral bearing, installing the TFS Cam Clutch next to a bearing which handles both the axial and radial loads is the typical application. TFS Series ships pre-lubricated with oil.
Unit of Measure


Bore Size

N/A 0.984 in25.00 mm

Torque Capacity

N/A 94.4 lb·ft128.0 N·m

Max. Overrunning Inner Race

N/A 2000 rpm

Max. Overrunning Outer Race

N/A 1000 rpm

Drag Torque

N/A 0.140 lb·ft0.19 N·m


N/A 8 x 2.0 mm

A (Overall Width)

N/A 0.945 in24.00 mm

B (Overall Diameter)

N/A 2.441 in62.00 mm

C (Outer Race I.D.)

N/A 2.047 in52.00 mm

D (Inner Race I.D.)

N/A 1.378 in35.00 mm

E (Chamfer)

N/A 0.047 in1.20 mm

F (Chamfer)

N/A 0.031 in0.80 mm

G (Slot Width)

N/A 0.315 in8.00 mm

H (Slot Depth)

N/A 0.110 in0.11 mm


N/A 0.792 lb0.360 kg
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