Rigid Shaft Coupling Bore Diameter 1 8 mm Bore Diameter 2 8 mm Bore Type Round Clearance Diameter 21.5 mm Coupling Construction Two-Piece Coupling Material Stainless Steel Coupling Outside Diameter 24 mm Different Bore Sizes No Keyway Depth 1 Not Applicable Keyway Depth 2 Not Applicable Minimum Bore Diameter 8 mm Keyway Width 1 Not Applicable Keyway Width 2 Not Applicable Maximum Bore Diameter 8 mm Maximum Speed 4 000 RPM Maximum Torque 16 N-m Overall Length 35 mm