Hilliard Sprag Clutches are equipped with heavy duty ball bearings to ensure concentricity and handle radial and axial loads. The clutches are designed to mount on a shaft with the inner race driven by a hardened key (not supplied). The tolerance of the outside diameter of the outer race is suitable for use as a pilot for attaching torque arms, pulleys or couplings. Hilliard Sprag Clutches are able to transmit more torque in a given package size than other styles of freewheel devices.
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