Keyless Rigid Coupling Coupling Length 56.1 mm Coupling Material Carbon Steel Included Screws 96 mm For Motion Type 7 Zero Backlash Metric Screw Material 36 mm Maximum Speed 36 mm Resistance Properties Round Maximum Torque 50 mm Fastener Tightening Torque 2 301 N-m Outside Diameter Oil Dipped Overhung Load Capacity +0.000 mm / -0.152 mm Bore Type 30 N-m System of Measurement Metric Length through Bore (7) Locking Screw Screw Length 45 mm Number of Locking Screws M8