INDUSTRY COMPONENT

Track Roller

A cylindrical component in crawler tracks that supports weight and facilitates smooth movement over terrain.

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Component Specifications

Definition
A track roller is a precision-engineered cylindrical component integral to crawler track systems, designed to bear substantial loads while enabling the continuous rotation of the track chain. It interfaces with the track links and bushings, distributing operational stresses and minimizing friction to ensure efficient power transmission and mobility across uneven surfaces.
Working Principle
The track roller operates by rotating on its axis as the crawler track moves, supported by internal bearings. It rolls along the inner surface of the track chain, reducing sliding friction, supporting the machine's weight, and maintaining track tension and alignment for stable propulsion.
Materials
Typically forged or cast alloy steel (e.g., AISI 4140, 4340) with surface hardening (hardness 55-60 HRC). Seals and bearings are often made of synthetic rubber (NBR, FKM) and high-grade steel.
Technical Parameters
  • Width 50-150 mm
  • Seal Type Multi-labyrinth or lip seals
  • Bearing Type Tapered roller or spherical roller bearings
  • Load Capacity 5-50 tons per roller
  • Outer Diameter 150-400 mm
Standards
ISO 5687, DIN 740

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Track Roller.

track roller crawler track component heavy machinery parts industrial rollers undercarriage parts construction equipment Track Roller in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Crawler Tracks

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

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Engineering Analysis

Risks & Mitigation
  • Premature wear due to abrasive environments
  • Bearing failure from contamination or inadequate lubrication
  • Misalignment causing uneven track wear
FMEA Triads
Trigger: Ingress of dirt or moisture due to seal failure
Failure: Bearing corrosion and seizure, leading to roller lock-up
Mitigation: Use high-quality multi-labyrinth seals, implement regular seal inspections, and ensure proper lubrication intervals.
Trigger: Excessive load or impact shocks
Failure: Cracking or deformation of the roller body
Mitigation: Design with alloy steel and hardening treatments, adhere to load capacity limits, and operate within specified terrain conditions.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 286, surface finish Ra ≤ 3.2 μm
Test Method
Load testing per ISO 5687, hardness testing per ASTM E18, seal integrity testing under simulated conditions

Buyer Feedback

★★★★☆ 4.9 / 5.0 (38 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Track Roller arrived with full certification."

"Great transparency on the Track Roller components. Essential for our Machinery and Equipment Manufacturing supply chain."

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

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Frequently Asked Questions

What is the primary function of a track roller?

The primary function is to support the weight of the machinery, reduce friction between the track chain and undercarriage, and ensure smooth, efficient movement over various terrains.

How often should track rollers be inspected?

Inspect track rollers every 250-500 operating hours for wear, seal damage, and lubrication levels, with more frequent checks in harsh conditions like mining or construction.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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