Description:Spur gears, like part 608-5124, are the most common type of gear and consist of a cylinder or disk with teeth projected straight outward. A spur gear also generally looks the same from either side since the teeth are straight from one side to the other.All Cat gears have unique metallurgy compositions tailored to specific applications, with special steel formulas that improve impact resistance and ensure uniformity and proper load transfer. Some Cat gears also undergo proprietary heat treat processes to improve surface, bore, and core hardness. The result is greater durability, which means longer life and better performance.Attributes:• Hardened steel gear• HCR Spur Gear Number of Teeth: 42• Pitch Diameter: 317.338 mm (12.49 in)• Internal Spline Number of Teeth: 14• Inside Diameter: 27.18 mm (1.07 in)• Outside Diameter: 340.23 mm (13.39 in)• Width: 76.2 mm (3.00 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.