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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 2.756 in70.00 mm

Torque Capacity

N/A 1854.2 lb·ft2514.0 N·m

Max. Overrunning Inner Race

N/A 750 rpm

Max. Overrunning Outer Race

N/A 380 rpm

Drag Torque

N/A 0.671 lb·ft0.91 N·m


N/A 20 x 2.7 mm

A (Overall Width)

N/A 2.008 in51.00 mm

B (Overall Diameter)

N/A 5.906 in150.00 mm

C (Outer Race I.D.)

N/A 4.921 in125.00 mm

D (Inner Race I.D.)

N/A 3.583 in91.00 mm

E (Chamfer)

N/A 0.102 in2.60 mm

F (Chamfer)

N/A 0.059 in1.50 mm

G (Slot Width)

N/A 0.787 in20.00 mm

H (Slot Depth)

N/A 0.272 in0.27 mm


N/A 9.658 lb4.390 kg
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