Jaw Coupling Insert, Coupling Size L225, Outside Diameter 4 61/64 in, System of Measurement Inch, Maximum Speed 4,600 RPM, Horsepower @ 100 RPM 3.7 hp, Spider Material Buna-N, Maximum Torque 2,340 in-lb, Parallel Misalignment 0.015 in, Durometer Hardness 80A, Axial Motion 0.015 in, Angular Misalignment 1 Degrees , For Minimum Hub Bore 5/8 in, Application Close Coupling L-Type, Color Black, Compatible Hub Manufacturer Part Number L225, Deform Torque 3,498 in-lb, Fail Safe Yes