Description: Sprocket transfers engine power to the link assemblies and engage the link assembly to create motion.Attributes:• Material: Steel• Hardened• Sprocket Teeth: 20• Internal Spline Number of Teeth: 50• Hub Width: 47.19 mm (1.857 in)• External Pitch Diameter: 284.15 mm (11.187 in)• Internal Pitch Diameter: 79.375 mm (3.125 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.