Rigid Shaft Coupling Bore Diameter 1 25 mm Bore Diameter 2 25 mm Bore Type Round Keyed Clearance Diameter 51.5 mm Coupling Construction Two-Piece Coupling Material Stainless Steel Coupling Outside Diameter 45 mm Different Bore Sizes No Keyway Depth 1 3.5 mm Keyway Depth 2 3.5 mm Minimum Bore Diameter 25 mm Keyway Width 1 8 mm Keyway Width 2 8 mm Maximum Bore Diameter 20 mm Maximum Speed 4 000 RPM Maximum Torque 120 N-m Overall Length 75 mm Shaft Locking Type Clamp On