109-4581: Differential Bevel Gear

Description: Bevel gear part # 109-4581 for use in the differential system to transmit power from the drive shaft to the axle shafts. 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 differential bevel gear • Bevel Gear Number of Teeth: 18 • Internal Spline Number of Teeth: 30 • External Spline Number of Teeth: 40 • Pitch Diameter: 145.8 mm (5.74 in) • Inside Diameter: 46.51 mm (1.83 in) • Outside Diameter: 148 mm (5.83 in) • Width: 70.97 mm (2.79 in) Application: Consult your owner's manual or contact your local Cat Dealer for more information.