Jaw Coupling Hub Coupling Size L225 Outside Diameter 127 mm Coupling Overall Length 137 mm System of Measurement Metric Hub Material Cast Iron Maximum Speed 4 600 RPM Horsepower @ 100 RPM 3.7 hp (Buna-N Spider) 5.6 hp (Urethane Spider) 9.9 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