Universal Joint Coupling Size 1250 Overall Length 21 in Maximum Bore Diameter Not Applicable Maximum Operating Angle 90 Degrees Yoke Length 1 7/8 in Boot Material Not Applicable Bore Diameter 5/8 in Number of Joints Double Joint Diameter 1 1/4 in Maximum Torque 940 in-lb Maximum Speed 1 000 RPM U-Joint Material Steel Joint Type Pin Block Booted No Outside Diameter 1 1/4 in Keyway Depth 3/32 in Keyway Width 3/16 in Length through Bore 1 1/4 in Break Torque 4 700 in-lb