Description

Send Inquiry

An idler gear must rotate around a defined axis while maintaining its relationship with neighboring gears. Our Transmission Idler Shaft provides the support for this gear inside a gearbox, including reverse-drive and shuttle-shift arrangements where the idler gear participates in changing the transmission path.

For this application, radial runout is a key dimensional consideration. The design specifies a maximum radial runout of 0.015 mm. We manufacture the shaft from 40Cr or 42CrMo steel, with quenching and tempering followed by induction hardening available for the specified configuration.

Specifications Table

Parameter	Specification
Shaft diameter	Φ15–Φ55 mm
Length	60–280 mm
Material	40Cr, 42CrMo
Heat treatment	Quenching and tempering + induction hardening
Radial runout	≤0.015 mm

Idler Support Requirements

Runout control: The ≤0.015 mm limit provides a reference for the specified shaft design.
Journal surface treatment: Induction hardening can be applied to designated contact areas.
Gear and housing fit: Shaft dimensions should match the idler gear bore and housing support arrangement.

Application Scenarios

Reverse idler gear mechanisms
Shuttle-shift transmissions
Gearbox gear-support assemblies
Agricultural and construction machinery repairs

OEM/ODM Customization

We manufacture from drawings or physical samples. Shaft diameter, length, journal dimensions, fit tolerances, and heat-treatment requirements can be specified according to the gearbox design.

Quality Control

Sampled products undergo dimensional inspection at the agreed production stages. Full inspection can be arranged for selected parts, and third-party inspection is accepted. Radial runout can be included in the agreed inspection criteria.