Grid Coupling Hub System of Measurement Inch Screw Thread Size M8 Outside Diameter 3 in Features Design Flexibility Horizontally Split Cover Stop Lug in Cover Prevents Spinning During Reversing Service Maximum Torque 6 054 in-lb For Misalignment Type Angular Parallel Included Screws Set Screw Bore Type Round with Keyway Application For Limited Space General Purpose Maximum Speed 4 350 RPM Standards AGMA Bore Diameter 1 1/2 in Weight 4.7 lb Length through Bore 2 1/2 in