INDUSTRY COMPONENT

Pin

A cylindrical pin used in track chains to connect links and transmit motion in heavy machinery.

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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.

track chain pin industrial pin component machinery fastening power transmission heavy equipment parts pin specifications track chain maintenance Pin Pin in Machinery and Equipment Manufacturing

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.

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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

Buyer Feedback

★★★★☆ 4.9 / 5.0 (16 reviews)

"The Pin we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 42+ suppliers for Pin on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Pin is very thorough, especially regarding technical reliability."

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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.

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Pilot Diameter Pin Body