Rigid Shaft Coupling Bore Diameter 1 12 mm Bore Diameter 2 12 mm Bore Type Round Keyed Clearance Diameter 33 mm Coupling Construction Two-Piece Coupling Material Carbon Steel Coupling Outside Diameter 29 mm Different Bore Sizes No Keyway Depth 1 1.9 mm Keyway Depth 2 1.9 mm Minimum Bore Diameter 12 mm Keyway Width 1 4 mm Keyway Width 2 4 mm Maximum Bore Diameter 12 mm Maximum Speed 4 000 RPM Maximum Torque 105 N-m Overall Length 45 mm Shaft Locking Type Clamp On