Rigid Shaft Coupling, Bore Diameter 1 7/8 in, Bore Diameter 2 7/8 in, Bore Type Round Keyed, Clearance Diameter 1.93 in, Coupling Construction Two-Piece, Coupling Material Stainless Steel, Coupling Outside Diameter 1 5/8 in, Different Bore Sizes No, Keyway Depth 1 3/32 in, Keyway Depth 2 3/32 in, Minimum Bore Diameter 7/8 in, Keyway Width 1 3/16 in, Keyway Width 2 3/16 in, Maximum Bore Diameter 7/8 in, Maximum Speed 4,000 RPM, Maximum Torque 1,100 in-lb, Overall Length 2 1/2 in