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Keyed shaft collars are commonly used in positive drive applications to prevent slippage on the shaft. In these applications other components can be mounted to the shaft collar to allow for the assembly to rotate with the shaft. These keyed double wide collars can be used as short rigid couplings in space constrained applications and benefit from increased torque capacity from the keyway. Bore sizes range from 3/8" to 2" and 8mm to 25mm.
