Rigid Shaft Coupling Bore Diameter 1 8 mm Bore Diameter 2 8 mm Bore Type Round Keyed Clearance Diameter 27.1 mm Coupling Construction Two-Piece Coupling Material Carbon Steel Coupling Outside Diameter 24 mm Different Bore Sizes No Keyway Depth 1 1.1 mm Keyway Depth 2 1.1 mm Minimum Bore Diameter 8 mm Keyway Width 1 2 mm Keyway Width 2 2 mm Maximum Bore Diameter 8 mm Maximum Speed 4 000 RPM Maximum Torque 50 N-m Overall Length 35 mm Shaft Locking Type Clamp On