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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 1.969 in50.00 mm

Torque Capacity

N/A 829.0 lb·ft1124.0 N·m

Max. Overrunning Inner Race

N/A 1000 rpm

Max. Overrunning Outer Race

N/A 500 rpm

Drag Torque

N/A 0.443 lb·ft0.60 N·m


N/A 14 x 2.1 mm

A (Overall Width)

N/A 1.575 in40.00 mm

B (Overall Diameter)

N/A 4.331 in110.00 mm

C (Outer Race I.D.)

N/A 3.622 in92.00 mm

D (Inner Race I.D.)

N/A 2.559 in65.00 mm

E (Chamfer)

N/A 0.071 in1.80 mm

F (Chamfer)

N/A 0.039 in1.00 mm

G (Slot Width)

N/A 0.551 in14.00 mm

H (Slot Depth)

N/A 0.220 in0.22 mm


N/A 4.180 lb1.900 kg
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