Specification: Item - Oldham Coupling Discs: Oldham Coupling Disc Fits Hub Outside Dia.: 1.313" / 33.3mm Material - Discs: Acetal Rated Torque: 70 in.-lb. Max. RPM: 4500Torsional Stiffness (Deg./In.-Lbs.): 0.009 Max. Angular Misalignment: 0.5 Degrees Max. Parallel Misalignment (In.): 0.008 Max. Axial Misalignment (In.): +/-.006 Max. Temp. Range (F): 150 Finish: Plain Disc Type: Acetal