Universal Joint Coupling Size Not Applicable Overall Length 4 1/4 in Maximum Bore Diameter 13/16 in Maximum Operating Angle 45 Degrees Yoke Length 2 1/8 in Boot Material Nitrile Bore Diameter 3/4 in Number of Joints Single Joint Diameter 1 1/2 in Maximum Torque 572 in-lb U-Joint Material Alloy Steel Joint Type Needle Bearing Booted Yes Outside Diameter 2 1/4 in Keyway Depth 3/32 in Keyway Width 3/16 in Length through Bore 1 3/8 in System of Measurement Inch