Shaft-Pinion 7I-7729

CAT
Part# 7I-7729
note
Pinion shaft for swing drive gear reduction in heavy equipment.
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Description

The Cat Shaft-Pinion (7I-7729) is a critical component within the swing drive assembly, providing gear reduction between the swing motor and swing gear. It facilitates controlled rotational movement by transmitting torque and maintaining the relative positioning of the machine’s upper and lower structures.

Key Specifications

  • Application: Excavators
  • Function: Gear reduction in swing drive system
  • Compatibility: 322, 322L, 345B, 345BL, 345BII
  • Construction: Low alloy steel, hardened steel
  • Features: 12 spur gear teeth, 42 external spline teeth, M20 thread size
  • Quality: OEM Cat part

Shipping Info

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More Information

Current Part# 7I-7729
Manufacturer CAT
Warranty Standard Manufactures