Jaw Coupling Hub Coupling Size L090 Outside Diameter 2 7/64 in Coupling Overall Length 2 1/8 in System of Measurement Inch Hub Material Carbon Steel Maximum Speed 9 000 RPM Horsepower @ 100 RPM 0.23 hp (Buna-N Spider) 0.35 hp (Urethane Spider) 0.64 hp (Hytrel Spider) Keyway Depth 3/64 in Keyway Width 3/32 in Bore Diameter 7/16 in Shaft Locking Type Set Screw Bore Type Round Bore with Keyway Jaw Profile Straight