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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
Set Screw Couplings Keyway
Unit of Measure
1 

Item #

Material

Bore

Diameter

Width

Set Screw

List Price

Unit of Measure

CSRC-037-KW N/A Black-Oxide Steel with Keyway N/A 3/8 in N/A 3/4 in N/A 1 in N/A 1/4-20 $25.94 N/A Each
CSRC-050-KW N/A Black-Oxide Steel with Keyway N/A 1/2 in N/A 1 in N/A 1 1/2 in N/A 1/4-20 $23.87 N/A Each
CSRC-062-KW N/A Black-Oxide Steel with Keyway N/A 5/8 in N/A 1 1/4 in N/A 2 in N/A 5/16-18 $29.31 N/A Each
CSRC-075-KW N/A Black-Oxide Steel with Keyway N/A 3/4 in N/A 1 1/2 in N/A 2 in N/A 5/16-18 $33.13 N/A Each
CSRC-087-KW N/A Black-Oxide Steel with Keyway N/A 7/8 in N/A 1 3/4 in N/A 2 in N/A 5/16-18 $42.94 N/A Each
CSRC-100-KW N/A Black-Oxide Steel with Keyway N/A 1 in N/A 2 in N/A 3 in N/A 5/16-18 $53.68 N/A Each
CSRC-112-KW N/A Black-Oxide Steel with Keyway N/A 1 1/8 in N/A 2 1/8 in N/A 3 in N/A 3/8-16 $80.84 N/A Each
CSRC-125-KW N/A Black-Oxide Steel with Keyway N/A 1 1/4 in N/A 2 1/4 in N/A 4 in N/A 3/8-16 $74.39 N/A Each
CSRC-137-KW N/A Black-Oxide Steel with Keyway N/A 1 3/8 in N/A 2 1/2 in N/A 4 1/2 in N/A 3/8-16 $94.13 N/A Each
CSRC-150-KW N/A Black-Oxide Steel with Keyway N/A 1 1/2 in N/A 2 1/2 in N/A 4 1/2 in N/A 3/8-16 $111.20 N/A Each
CSRC-175-KW N/A Black-Oxide Steel with Keyway N/A 1 3/4 in N/A 2 3/4 in N/A 4 1/2 in N/A 3/8-16 $129.63 N/A Each
CSRC-200-KW N/A Black-Oxide Steel with Keyway N/A 2 in N/A 3 5/16 in N/A 4 1/2 in N/A 1/2-13 $143.76 N/A Each
Unit of Measure
1