Cross member/Transom: Load Capacity 80-150kN static

Component Specifications

Definition

A critical structural component in railway bogie frames that spans transversely between the two longitudinal side frames, providing torsional rigidity, load distribution, and maintaining the geometric integrity of the bogie assembly under dynamic operational stresses.

Working Principle

Functions as a rigid beam element that transfers vertical, lateral, and longitudinal forces between bogie side frames, resisting bending moments and torsion while maintaining prescribed wheelbase alignment and supporting secondary suspension components.

Materials

High-strength low-alloy steel (HSLA) grades such as ASTM A572 or EN 10025 S355, with yield strength 355-460 MPa, or forged steel for high-stress applications; thickness typically 12-25mm.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	200-350mm
Height	150-300mm
Length	1800-2500mm
Weight	80-200kg
Load Capacity	80-150kN static
Mounting Holes	ISO M20-M24 bolts

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 1005, DIN 27201, EN 13749

Parent Products

This component is used in the following industrial products

Bogie frame

The primary structural component of a bogie that supports the vehicle body and connects to the wheelsets.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue cracking at weld joints
Corrosion in harsh environments
Geometric deformation under overload

FMEA Triads

Trigger: Inadequate weld penetration or stress concentration
Failure: Crack propagation leading to structural failure
Mitigation: Implement ultrasonic testing (UT) and design with smooth transitions at stress points

Trigger: Excessive dynamic loading from track defects
Failure: Permanent deformation affecting wheel alignment
Mitigation: Regular inspection and use of strain gauges for load monitoring

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±2mm on critical dimensions per EN 13749

Test Method

Static load testing to 1.5x design load, fatigue testing per ISO 12107

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 Cross member/Transom

Manufacturer profiles associated with Cross member/Transom.

Sourcing Cross member/Transom from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

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

Related Components

Prestressing Tendons

High-strength steel tendons used to apply compressive stress in concrete bridge beams for enhanced load capacity and durability.

Primary suspension

Primary suspension system connecting bogie frame to axle boxes in railway vehicles for vibration damping and load transfer.

Coupler Head

Coupler head is the front connecting component of railway couplers that engages with mating couplers to join rail vehicles.

Friction Wedges

Friction wedges are critical components in railway coupler and draft gear systems that absorb impact energy through controlled friction.

Frequently Asked Questions

What is the primary function of a cross member in a bogie frame?

To provide transverse structural connection between side frames, distributing operational loads and maintaining bogie geometry under dynamic conditions.

How does material selection impact cross member performance?

High-strength steel ensures fatigue resistance and weight optimization, critical for withstanding cyclic stresses from track irregularities and braking forces.

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.

Cross member/Transom