Jaw Coupling Insert Coupling Size JC36 JCC36 JS36 JSC36 MJC57 MJCC57 MJS57 MJSC57 Outside Diameter 2 1/4 in System of Measurement Inch Maximum Speed 8 000 RPM Horsepower @ 100 RPM 1.30 hp Spider Material Polyurethane Maximum Torque 410 in-lb Parallel Misalignment 0.004 in Durometer Hardness 98A Axial Motion 0.05 in Angular Misalignment 0.8 Degrees Color Red Compatible Hub Manufacturer Part Number JC36 JCC36 JS36 JSC36 MJC57 MJCC57 MJS57 MJSC57 Deform Torque 820 lb-in