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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 1.575 in40.00 mm

Torque Capacity

N/A 447.7 lb·ft607.0 N·m

Max. Overrunning Inner Race

N/A 1300 rpm

Max. Overrunning Outer Race

N/A 650 rpm

Drag Torque

N/A 0.339 lb·ft0.46 N·m


N/A 12 x 2.2 mm

A (Overall Width)

N/A 1.299 in33.00 mm

B (Overall Diameter)

N/A 3.543 in90.00 mm

C (Outer Race I.D.)

N/A 3.071 in78.00 mm

D (Inner Race I.D.)

N/A 2.146 in54.50 mm

E (Chamfer)

N/A 0.071 in1.80 mm

F (Chamfer)

N/A 0.039 in1.00 mm

G (Slot Width)

N/A 0.472 in12.00 mm

H (Slot Depth)

N/A 0.161 in0.16 mm


N/A 2.310 lb1.050 kg
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