221-3089: Helical Gear

Description: Helical gears, such as part # 221-3089, utilize overlapping tooth contact for smoother, quieter operation and can transmit higher force than other types of comparably sized gears. 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 • Helical Gear Number of Teeth: 73 • Helix Hand: Left • Pitch Diameter: 246.650 mm (9.71 in) • Inside Diameter: 129.93 mm (5.12 in) • Outside Diameter: 255.97 mm (10.08 in) • Width: 65.18 mm (2.57 in) Application: Consult your owner's manual or contact your local Cat Dealer for more information.