Series 640 Long Handle Puller Pinion Shaft

Product Description

This CM pinion shaft is a replacement drive component for Series 640 long handle pullers. The Series 640 parts list identifies part number 40480 as component 640-121, the pinion shaft installed within the puller’s operating mechanism.

The pinion shaft forms part of the mechanical drive path that transfers movement from the manually operated lever and brake assembly to the puller’s chain-driving components. It operates in dedicated brake-end and pinion-end bushings, helping maintain alignment and controlled rotation inside the puller frame.

This replacement shaft is intended for servicing a puller with a worn, bent, damaged, corroded, or otherwise unserviceable original component. During replacement, the adjoining bushings, pinion thrust washer, friction hub, gear cover, and related drive components should also be checked for wear or damage that could affect smooth operation.

Material:
Manufacturer material and heat treatment not specified

Compatible With:
CM Series 640 Long Handle Pullers
Series 640 assemblies requiring part number 40480

Uses:
Transferring operating movement through the puller drive assembly
Replacing a worn or damaged pinion shaft
Restoring alignment within the internal drive mechanism
Rebuilding and maintaining Series 640 pullers

Key Features:
Model-specific CM replacement component
Operates between dedicated pinion-shaft bushings
Integrates with the brake and drive-side components
Supports smooth mechanical power transmission
Identified as Series 640 component 640-121