Shaft-Pinion 505-4781

positive OEM
CAT
Part# 505-4781
note
Pinion shaft for swing drive gear reduction in heavy equipment.
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Description

The Cat Shaft-Pinion (505-4781) is a critical drivetrain component that transmits torque within the swing drive assembly. It facilitates gear reduction between the swing motor and swing gear, enabling controlled rotational movement of the upper structure relative to the lower machine frame.

Key Specifications

  • Application: Excavator swing drive group
  • Function: Torque transmission and gear reduction
  • Compatibility: Cat 330 Excavator series
  • Construction: Low alloy steel, alloy steel
  • Features: Hardened steel shaft, 12-tooth spur gear, 42-tooth external spline, M20 thread size
  • Quality: OEM Cat part

Shipping Info

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More Information

Current Part# 505-4781
Type OEM
Manufacturer CAT
Warranty Standard Manufacturer Warranty