Axles: Load Capacity 5-50 kN radial, Diameter Range 20-150 mm

Component Specifications

Definition

Axles are critical rotating shaft components in end carriages of industrial machinery that serve dual functions: transmitting torque from drive systems to wheels or rollers, and providing structural support to bear radial and axial loads. They maintain precise alignment between rotating elements while withstanding bending moments, shear forces, and torsional stresses during operation.

Working Principle

Axles operate on rotational mechanics principles, converting input torque into rotational motion at the wheel interface. They maintain fixed geometric relationships between connected components while distributing loads through their cylindrical cross-section. The axle's diameter and material properties determine its torsional rigidity and load-bearing capacity according to beam theory and shear stress calculations.

Materials

Typically manufactured from alloy steels (AISI 4140, 4340) or carbon steels with surface hardening treatments. High-performance applications may use case-hardened steels, stainless steels (AISI 316), or specialized alloys for corrosion resistance. Material specifications include tensile strength (≥800 MPa), yield strength (≥600 MPa), and hardness (HRC 45-55 for surface).

Technical Parameters

Parameter	Typical range	Notes & selection driver
Maximum RPM	500-3000
Load Capacity	5-50 kN radial
Diameter Range	20-150 mm
Surface Finish	Ra 0.8-1.6 μm
Weight Capacity	500-5000 kg
Length Tolerance	±0.1 mm
Straightness Tolerance	0.05 mm/m

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 286-2, DIN 748, ISO 2768-1, DIN 7172

Parent Products

This component is used in the following industrial products

End Carriages

Structural components at the ends of a gantry structure that support and guide the movement of the gantry bridge or trolley.

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Engineering Analysis

Risks & Mitigation

Fatigue failure from cyclic loading
Bearing seizure due to inadequate lubrication
Corrosion in harsh environments
Misalignment causing premature wear
Overloading beyond design limits

FMEA Triads

Trigger: Insufficient lubrication
Failure: Bearing seizure and scoring of axle surface
Mitigation: Implement automated lubrication systems with monitoring and regular maintenance schedules

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to catastrophic fracture
Mitigation: Use fatigue-resistant materials, implement regular non-destructive testing, and design with appropriate safety factors

Trigger: Corrosive environment exposure
Failure: Reduced cross-sectional area and strength degradation
Mitigation: Apply protective coatings, use corrosion-resistant materials, and implement environmental controls

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286-2, surface finish per ISO 1302

Test Method

Non-destructive testing (magnetic particle, ultrasonic), hardness testing (Rockwell C), dimensional verification with CMM, load testing with hydraulic actuators

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 Axles

Manufacturer profiles associated with Axles.

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

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between live axles and dead axles in industrial applications?

Live axles transmit torque and rotate with the wheel, while dead axles remain stationary and only provide structural support. Industrial end carriages typically use live axles for driven wheels and dead axles for idler wheels.

How do I select the proper axle diameter for my application?

Calculate based on maximum torque transmission requirements, bending moment from loads, safety factor (typically 2-3), and deflection limits. Consider material properties, operating environment, and required service life.

What maintenance is required for industrial axles?

Regular inspection for wear, corrosion, and deformation; lubrication of bearing surfaces; alignment checks; and monitoring for vibration or unusual noise indicating potential failure.

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.

Axles