Motion Control Coupling Bellows Clamp Style Bore Dia 5 x 4 mm Outside Dia 15.00 mm Clearance Dia 15.00 mm Hub Dia 15.00 mm Overall Length 27.00 mm Length through Bore 12.50 mm Cap Screw M2 Screw Size Torque Nominal 22 In-Lbs Torsional Stiffness 0.014 Deg/In-Lbs 10 000 Max RPM Max Temp 200 F Aluminum Material Anodized Aluminum Finish