Description

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A reverse gear assembly needs a shaft that keeps the reverse gear and idler gear correctly supported as the transmission changes direction. Our Transmission Gear Shaft is designed for this role, providing the mounting position and rotational support required by the gearbox layout.

For replacement-part buyers, the fit between the shaft journals and mating components is a key selection point. We manufacture this shaft from 40Cr or 42CrMo steel. Quenching and tempering can be followed by induction hardening on specified journal areas, combining core strength requirements with localized surface-wear resistance.

Specifications Table

Parameter	Specification
Shaft diameter	Φ20–Φ60 mm
Length	80–350 mm
Material	40Cr, 42CrMo
Heat treatment	Quenching and tempering + induction hardening
Machining accuracy	IT6–IT7

Journal Fit and Material Selection

Journal wear control: Induction hardening is available for specified contact areas.
Two steel grades: Choose 40Cr or 42CrMo according to the approved design.
Controlled dimensions: IT6–IT7 accuracy supports the required fit between the shaft and mating parts.

Typical Applications

Reverse gear and idler gear assemblies
Mechanical gearbox overhaul projects
Transmission component replacement
OEM gearbox manufacturing

OEM/ODM Customization

We produce shafts from customer drawings or physical samples. Overall length, shaft diameter, journal dimensions, spline sections, smooth-shaft sections, and heat-treatment areas can be specified to match the transmission design.

Quality Control

Dimensional inspections are performed on sampled parts at each inspection stage. Full inspection can be arranged for selected products, and third-party inspection is accepted. Critical fits should be identified in the approved drawing before production.