Rigid Shaft Coupling Bore Diameter 1 5 mm Bore Diameter 2 5 mm Bore Type Round Clearance Diameter 15 mm Coupling Construction One-Piece Coupling Material Stainless Steel Coupling Outside Diameter 15 mm Different Bore Sizes No Keyway Depth 1 Not Applicable Keyway Depth 2 Not Applicable Minimum Bore Diameter 5 mm Keyway Width 1 Not Applicable Keyway Width 2 Not Applicable Maximum Bore Diameter 5 mm Maximum Speed 4 000 RPM Maximum Torque 1.99 N-m Overall Length 22 mm