Rigid Shaft Coupling Bore Diameter 1 12 mm Bore Diameter 2 12 mm Bore Type Round Clearance Diameter 33 mm Coupling Construction Two-Piece Coupling Material Carbon Steel Coupling Outside Diameter 29 mm Different Bore Sizes No Keyway Depth 1 Not Applicable Keyway Depth 2 Not Applicable Minimum Bore Diameter 12 mm Keyway Width 1 Not Applicable Keyway Width 2 Not Applicable Maximum Bore Diameter 12 mm Maximum Speed 4 000 RPM Maximum Torque 105 N-m Overall Length 45 mm