Description

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In a multi-stage gearbox, the intermediate shaft carries transmission components between gear stages. Its alignment across bearing seats and gear-mounting sections is important when several components share the same rotational axis.

Our Transmission Intermediate Shaft is available in 40Cr or 42CrMo steel. Quenching and tempering followed by induction hardening can be specified for the required configuration. The design includes a coaxiality requirement of ≤0.02 mm, providing a measurable reference for the alignment of designated shaft features.

Specifications Table

Parameter	Specification
Shaft diameter	Φ20–Φ70 mm
Length	150–500 mm
Material	40Cr, 42CrMo
Heat treatment	Quenching and tempering + induction hardening
Coaxiality	≤0.02 mm

Alignment and Machining Priorities

Coaxiality requirement: The ≤0.02 mm limit applies to the specified design and inspection criteria.
Material selection: 40Cr and 42CrMo offer alternatives for different mechanical requirements.
Localized hardening: Induction hardening can be applied to designated contact areas where required.

Common Uses

Multi-stage gearboxes
Intermediate gear trains
Agricultural and construction machinery transmissions
Gearbox overhaul and replacement programs

OEM/ODM Customization

We work from customer drawings or physical samples. Overall length, shaft diameter, gear seats, bearing journals, coaxiality limits, and heat-treatment areas can be defined for the target gearbox.

Quality Control

Sampled parts are checked at each dimensional inspection stage. Full inspection is available for selected products, and third-party inspection is accepted. Coaxiality and other critical tolerances should be clearly identified in the approved technical drawing.