Jaw Coupling Hub Coupling Size MJS15 Outside Diameter 15 mm Coupling Overall Length 21.8 mm System of Measurement Metric Hub Material Aluminum Maximum Speed 8 000 RPM Keyway Depth Not Applicable Keyway Width Not Applicable Bore Diameter 3 mm Shaft Locking Type Set Screw Bore Type Round Bore Jaw Profile Curved Screw Thread Size M3 Bore Tolerance +0.05/-0.00 mm Fail Safe Yes Shaft Tolerance +0.000/-0.013 mm Full Bearing Support Required Yes Hub Diameter 15 mm