Can I contact factories directly on CNFX?

CNFX is an open directory. Each factory profile provides direct contact information.

Pin Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A precision-engineered cylindrical component that serves as a pivotal connection point between adjacent links in track chains, enabling articulation while transmitting torque and load in tracked vehicles and industrial machinery. It functions as both a fastener and a bearing surface, maintaining chain integrity under extreme mechanical stress.

Working Principle

The pin rotates within bushings or sleeves in track chain links, allowing articulation while distributing loads evenly. It transfers motion from the drive sprocket through the chain, converting rotational force into linear track movement with minimal friction and wear.

Materials

Typically alloy steel (e.g., AISI 4140, 4340) or case-hardened steel; often chrome-plated or treated with wear-resistant coatings; material hardness ranges from 55-65 HRC for surface durability.

Technical Parameters

Length 100-500 mm
Diameter 20-100 mm
Hardness 55-65 HRC
Load Capacity 50-500 kN
Surface Finish 0.8-1.6 μm Ra
Tensile Strength 800-1200 MPa

Standards

ISO 286-2, DIN 6325, ISO 1234

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pin.

Parent Products

This component is used in the following industrial products

Track Chain

A continuous chain assembly that forms the structural backbone of a tracked vehicle's undercarriage, transferring power from the drive sprocket to the ground.

View Product Details

Engineering Analysis

Risks & Mitigation

Shear failure under overload
Premature wear from contamination
Corrosion in harsh environments
Improper installation causing misalignment

FMEA Triads

Trigger: Inadequate lubrication
Failure: Accelerated wear and seizing
Mitigation: Implement automated lubrication systems and regular maintenance schedules

Trigger: Material defects or improper heat treatment
Failure: Fracture under cyclic loading
Mitigation: Enforce strict material certification and non-destructive testing (NDT) protocols

Trigger: Misalignment during installation
Failure: Uneven load distribution and premature failure
Mitigation: Use precision alignment tools and torque-controlled installation procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Diameter: h6/h7 per ISO 286-2; Straightness: 0.05 mm per 100 mm length

Test Method

Hardness testing (Rockwell C), dimensional verification (CMM), magnetic particle inspection for defects

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a track chain pin?

It connects track chain links while enabling articulation and transmitting motion/loads in tracked machinery like excavators and bulldozers.

How often should track chain pins be inspected?

Inspect every 250-500 operating hours; replace when wear exceeds 3-5% of original diameter or shows visible scoring/grooving.

Can track chain pins be reconditioned?

Yes, through machining and re-hardening if within tolerance limits; otherwise replacement is recommended for safety.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Pin