INDUSTRY COMPONENT

Track Pin

A track pin is a cylindrical fastener that connects track links in track chains for heavy machinery.

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Component Specifications

Definition
A track pin is a precision-engineered cylindrical component that serves as the primary connecting element between adjacent track links in track chain assemblies. It functions as a pivot point, allowing articulation while maintaining structural integrity under extreme loads and environmental conditions. Typically heat-treated and surface-hardened, it withstands shear forces, abrasion, and impact during operation in construction, mining, and agricultural equipment.
Working Principle
The track pin operates by inserting through aligned bushings in track links, forming a rotating joint. It distributes operational loads across the track chain while permitting controlled articulation during movement over uneven terrain. Lubrication channels or sealed designs reduce friction and wear between mating surfaces.
Materials
Alloy steel (e.g., AISI 4140, 4340) or boron steel, heat-treated to 40-50 HRC surface hardness with core toughness of 25-35 HRC. Optional coatings include phosphate, zinc, or chrome plating for corrosion resistance.
Technical Parameters
  • Length 100-300 mm
  • Weight 0.5-5 kg
  • Diameter 20-50 mm
  • Hardness 40-50 HRC surface
  • Tensile Strength ≥1000 MPa
Standards
ISO 286-2, DIN 6325

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Track Pin.

track pin track chain component heavy equipment parts track assembly machinery pins industrial fasteners Track Pin in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Track Assembly (Track Chain)

A continuous loop of linked track plates and components that forms the driving surface for crawler undercarriage systems.

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Crawler Tracks

Continuous track system providing traction and load distribution for tracked vehicles.

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Engineering Analysis

Risks & Mitigation
  • Shear failure under overload
  • Accelerated wear from contamination
  • Corrosion in wet/chemical environments
  • Improper installation causing track misalignment
FMEA Triads
Trigger: Inadequate lubrication
Failure: Increased friction and premature wear
Mitigation: Implement automatic lubrication systems and regular maintenance schedules
Trigger: Material defects or improper heat treatment
Failure: Fracture under operational loads
Mitigation: Enforce strict material certification and quality control during manufacturing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm diameter, ±0.1 mm length
Test Method
Dimensional verification per ISO 286-2, hardness testing per ASTM E18, tensile testing per ASTM A370

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 causes track pin failure?

Common causes include excessive wear from abrasion, shear failure due to overloading, corrosion in harsh environments, and improper installation leading to misalignment.

How often should track pins be inspected?

Inspect every 250-500 operating hours or during routine maintenance checks. Replace if wear exceeds 3-5% of original diameter or if visible damage is present.

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.

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