378-9527: Planetary Gear

Part # 378-9527 provides a planetary gear for use in the swing drive planetary gear set. 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 • Spur Gear Number of Teeth: 24 • Pitch Diameter: 132 mm (5.20 in) • Inside Diameter: 86.02 mm (3.39 in) • Outside Diameter: 150 mm (3.76 in) • Width: 78 mm (3.07 in) Application: Consult your owner's manual or contact your local Cat Dealer for more information.