Description:Drive coupling is used to reduce and control torsional vibrations transmitted from the engine to driven equipment. Cat torsional couplings are specifically engineered to protect the drive train during high loading events.Attributes:• Steel torsional coupling assembly• Internal Spline Number of Teeth: 64• Outside Diameter: 468.78 mm (18.455 in)• Width: 36.57 mm (1.446 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.