INDUSTRY COMPONENT

Axle Shaft

A rotating shaft that transmits torque from the differential to the wheels in automotive and machinery applications.

Component Specifications

Definition
The axle shaft is a critical powertrain component that connects the differential assembly to the wheel hub, transferring rotational force and torque to drive the vehicle. It must withstand significant torsional, bending, and shear stresses while maintaining precise alignment and rotational balance.
Working Principle
Works on the principle of torque transmission through rotational motion. The differential splits engine power between two axle shafts, which rotate at speeds determined by driving conditions (straight vs. turning). The shaft's splined ends engage with the differential side gear and wheel hub to deliver power while allowing for suspension movement.
Materials
Typically forged alloy steel (SAE 4140, 4340, or similar grades) with heat treatment (carburizing or induction hardening) to achieve surface hardness of 55-62 HRC and core toughness. Some applications use carbon fiber composites or high-strength aluminum alloys for weight reduction.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Length500-1200 mm (vehicle dependent)
Weight5-15 kg
Diameter25-50 mm
Spline TypeInvolute splines (30-40 teeth common)
Surface FinishRa 0.8-1.6 μm
Torque Capacity800-3500 Nm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 4156, DIN 5480, SAE J498, ISO 286-2

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Fatigue failure from cyclic loading
  • Spline wear leading to power loss
  • Corrosion in harsh environments
  • Improper installation causing vibration
  • Material defects leading to fracture
FMEA Triads
Trigger: Material fatigue from repeated torque cycles
Failure: Shaft fracture under load
Mitigation: Regular inspection for surface cracks, proper heat treatment, and using fatigue-resistant alloy steels
Trigger: Improper spline engagement during assembly
Failure: Spline stripping and power transmission loss
Mitigation: Precise machining to tolerance standards, proper lubrication during installation, torque verification
Trigger: Corrosion in salt or moisture exposure
Failure: Reduced cross-sectional strength and eventual failure
Mitigation: Protective coatings (zinc plating, powder coating), regular cleaning in corrosive environments

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Spline dimensions: ISO 4156 Class 7, Diameter: h7/h8 tolerance, Straightness: 0.1 mm per 300 mm
Test Method
Torque testing to 150% of rated capacity, rotational fatigue testing (minimum 1 million cycles), hardness testing (Rockwell C), magnetic particle inspection for cracks

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Axle Shaft

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Jiangsu Huixuan New Energy Equipment Co., Ltd.
Zhangjiagang, Jiangsu, CN
ISO BV SGS IST +2
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Axle Shaft Forging”
View source page ↗ heavy-steelforgings.com · checked 2026-08-26
Guangzhou first Jun Technology Co., Ltd.
Guangzhou, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “CV Axle Shaft”
View source page ↗ cowtotal.com · checked 2026-09-16

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between an axle shaft and a CV axle?

An axle shaft is a straight rotating shaft, while a CV (Constant Velocity) axle includes constant velocity joints at both ends to accommodate angular movement in front-wheel drive and independent suspension systems.

How do I know if my axle shaft is failing?

Common signs include clicking sounds during turns (CV joint wear), vibration during acceleration, grease leakage from boots, or visible damage to the shaft or splines.

Can axle shafts be repaired or must they be replaced?

Typically replaced as a unit due to precision requirements and heat treatment. CV joints may be serviceable on some models, but damaged shafts require complete replacement.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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