Rigid Shaft Coupling Bore Diameter 1 50 mm Bore Diameter 2 50 mm Bore Type Round Keyed Clearance Diameter 94.2 mm Coupling Construction One-Piece Coupling Material Stainless Steel Coupling Outside Diameter 85 mm Different Bore Sizes No Keyway Depth 1 4 mm Keyway Depth 2 4 mm Minimum Bore Diameter 40 mm Keyway Width 1 14 mm Keyway Width 2 14 mm Maximum Bore Diameter 50 mm Maximum Speed 4 000 RPM Maximum Torque 675 N-m Overall Length 124 mm Shaft Locking Type Clamp On