Jaw Coupling Hub Coupling Size L190 Outside Diameter 114 mm Coupling Overall Length 124 mm System of Measurement Metric Hub Material Cast Iron Maximum Speed 5 000 RPM Horsepower @ 100 RPM 2.7 hp (Buna-N Spider) 4.1 hp (Urethane Spider) 7.4 hp (Hytrel Spider) Keyway Depth 3.3 mm Keyway Width 12 mm Bore Diameter 42 mm Shaft Locking Type Set Screw Bore Type Round Bore with Keyway Jaw Profile Straight Compatible Center Element Manufacturer Part Number L190H L190N L190U