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Traditional cost effective rigid coupling design. Provides torque transmission and alignment. The keyway gives you a more secure hold and are especially good for alternating motion applications. They have standard ANSI keyway dimensions.

Black Oxide offers some corrosion resistance
Unit of Measure

Specifications

Material

N/A Black-Oxide Steel with Keyway

Bore

N/A 3/8 in

Diameter

N/A 3/4 in

Width

N/A 1 in

Set Screw

N/A 1/4-20

Unit of Measure

N/A Each