Description: Sprocket transfers engine power to the link assemblies and engage the link assembly to create motion.Attributes:• Material: Steel• Hardened• Sprocket Teeth: 12• Internal Spline Number of Teeth: 49• Hub Width: 33.18 mm (1.306 in)• External Pitch Diameter: 122.67 mm (4.829 in)• Internal Pitch Diameter: 62.230 mm (2.45 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.