INDUSTRY COMPONENT

Track Link

Track link is a critical component in track assembly systems that connects track shoes to form continuous chains for heavy machinery movement.

Component Specifications

Definition
A track link is a forged or cast metal component that serves as the fundamental connecting element in track chain assemblies. It features precisely machined pin holes at both ends that accommodate track pins, creating articulated joints between adjacent links. The link's design includes mounting surfaces for track shoes and may incorporate wear-resistant features like hardened bushings. These components are engineered to withstand extreme compressive, tensile, and shear forces while maintaining dimensional stability under heavy loads and abrasive conditions.
Working Principle
Track links function as articulated connectors in track chain systems, creating flexible yet robust chains that wrap around drive sprockets and idlers. When assembled with pins and bushings, they form revolute joints that allow controlled articulation while transmitting driving forces from sprockets to ground contact points. The link geometry determines track pitch, while its material properties and heat treatment ensure durability against impact loads, ground engagement forces, and environmental wear.
Materials
Alloy steels (typically SAE 4140, 4340, or equivalent grades) with hardness ranging from 35-45 HRC after heat treatment. High-wear applications may use through-hardened steels or incorporate induction-hardened contact surfaces. Premium versions utilize boron steels or micro-alloyed steels for enhanced toughness.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Pitch150-250 mm
Width100-300 mm
Height50-120 mm
Weight5-25 kg
Hardness35-45 HRC
Yield Strength≥600 MPa
Tensile Strength≥800 MPa
Pin Hole Diameter30-60 mm

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 7452, DIN 740, ISO 6015

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Catastrophic track failure if links fracture
  • Premature wear from improper alignment
  • Material fatigue leading to sudden breakage
FMEA Triads
Trigger: Excessive bushing wear
Failure: Increased track pitch causing sprocket skipping
Mitigation: Regular wear measurement and scheduled bushing replacement
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to link fracture
Mitigation: Implement regular NDT inspections and replace at 80% of design life
Trigger: Improper pin installation
Failure: Pin seizure and accelerated link wear
Mitigation: Follow torque specifications and use proper lubrication during assembly

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Pin hole diameter: ±0.05mm, Pitch variation: ±0.5mm, Hardness uniformity: ±2 HRC
Test Method
Dimensional inspection per ISO 8015, hardness testing per ISO 6508, magnetic particle inspection per ASTM E1444

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 Track Link

10 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

CLIK Tracks Manufacturing (Jiangsu) Ltd.
Shanghai, CN
Also makes: Track Chain
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track Link Assembly”
View source page ↗ cliktracks.com · checked 2026-09-16
CQC Track
Quanzhou, Fujian, CN
Also makes: Undercarriage
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Excavator Track Link”
View source page ↗ cqctrack.com · checked 2026-09-16
Hangzhou XC Machinery Co,.ltd.
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track link”
View source page ↗ xcgparts.com · checked 2026-09-06
Luhongsheng Trading Co., Ltd.
Xiamen, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track Link & Chain”
View source page ↗ hokparts.com · checked 2026-09-16
Quanzhou Huamao Machinery Equipment Co.,Ltd
Quanzhou, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track link assembly”
View source page ↗ cnkmf.com · checked 2026-09-09
Quanzhou Zhongkai Machinery
Quanzhou, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track Link”
View source page ↗ zkucparts.com · checked 2026-09-16
UBrightSolution Technology Co., Ltd.
Nanjing, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track Link Manufacturing”
View source page ↗ ubrightsolutions.com · checked 2026-09-08
Xiamen Doolin Construction Machinery Co., Ltd.
Xiamen, Fujian, CN
Also makes: Undercarriage, Loader Bucket, Wheel Loader and 1 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “CAT E330 Track Link”
View source page ↗ doolincm.com · checked 2026-09-16
Xiamen Yintai Machinery Co., Ltd.
Xiamen, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Track Link Protector”
View source page ↗ yintparts.com · checked 2026-09-16
XTPtrack
Xiamen, Fujian, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “track link 49L pc300 china”
View source page ↗ xtptrack.com · checked 2026-09-13

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

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Frequently Asked Questions

What causes track link failure?

Common failure modes include bushing wear exceeding 5mm, pin hole elongation beyond tolerance, material fatigue cracks, and impact damage from rocks or debris.

How often should track links be inspected?

Inspect every 250 operating hours for wear patterns, check pin hole dimensions every 1000 hours, and perform magnetic particle testing annually for crack detection.

Can track links be repaired?

Limited repairs include bushing replacement and weld buildup on non-critical surfaces, but severely worn or cracked links must be replaced for safety.

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.

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