Shaft Coupler Body, Coupling Size L150, Outside Diameter 3 3/4 in, Coupling Overall Length 4 1/2 in, System of Measurement Inch, Hub Material Sintered Iron, Maximum Speed 5, 000 RPM, Horsepower @ 100 RPM 2.0 hp (Buna-N Spider), 3.0 hp (Urethane Spider), 5.9 hp (Hytrel Spider), Keyway Depth 5/32 in, Keyway Width 5/16 in, Bore Diameter 1 3/8 in, Shaft Locking Type Set Screw, Bore Type Round Bore with Keyway, Jaw Profile Straight. This item has been restricted from sale in the following state (s): []