Track Pin: Diameter 20-50 mm, Length 100-300 mm

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

Parameter	Typical range	Notes & selection driver
Length	100-300 mm
Weight	0.5-5 kg
Diameter	20-50 mm
Hardness	40-50 HRC surface
Tensile Strength	≥1000 MPa

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 6325

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.

View Product Details

Crawler Tracks

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

View Product Details

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

Typical Suppliers & Equivalents

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

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.

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Manufacturers of Track Pin

Manufacturer profiles associated with Track Pin.

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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 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.

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.

Track Pin