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Heavy-Duty Friction Discs for Komatsu Construction Machinery: OEM 561, 566, and 714 Series

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Update time : 2026-03-11 08:30:02

Heavy-Duty Sintered Bronze Friction Disc for Komatsu Bulldozer and Loader

Heavy-Duty Replacement Friction Discs for Komatsu Machinery: Technical Guide

Komatsu heavy equipment is engineered to perform in the world's harshest environments, from deep-pit mining to large-scale infrastructure projects. The integrity of the transmission and steering clutch systems depends on high-performance friction discs. For fleet managers and distributors, sourcing replacement friction plates that match Komatsu’s rigorous standards is vital for reducing downtime. This guide covers key OEM series, including 561, 566, and 714.

Komatsu OEM Cross-Reference & Technical Specs

Our aftermarket friction solutions are manufactured to ensure maximum torque transfer and thermal resistance for Komatsu bulldozers and wheel loaders.

OEM Part Number Dimensions (mm) Teeth Configuration Material Common Application
561-15-19911 165 * 114 * 3.4 Internal Teeth Sintered Bronze Komatsu D50 / D60 Bulldozer
566-15-19910 195 * 135 * 3.8 Internal Teeth Sintered Bronze Komatsu Wheel Loaders
714-11-19111 210 * 145 * 4.2 External Teeth Sintered Bronze Komatsu HD Series Dump Trucks

Engineered for High-Torque & Extreme Heat

Komatsu machines often operate under continuous high-load conditions. Our replacement friction discs utilize advanced sintered bronze technology to provide:

  • High Friction Stability: Maintains a consistent dynamic μ (0.32 - 0.38) even during rapid gear shifts and high-speed braking.
  • Superior Heat Dissipation: Specifically formulated copper-based matrix allows for efficient thermal transfer, preventing "hot spots" on mating plates.
  • Long Service Life: Enhanced wear resistance ensures longer intervals between transmission overhauls, even in mining applications.

Quality Assurance for Heavy-Duty Operations

We recognize that in the mining and construction sectors, failure is not an option. Every Komatsu replacement part follows a strict Quality Control Protocol:

  • Spline Accuracy: Internal and external teeth are precision-cut to ensure a perfect fit with Komatsu OE shafts and drums.
  • Flatness Standards: Discs are ground to within ±0.05mm flatness to ensure clean disengagement and reduce parasitic drag.
  • Material Density: Controlled sintering atmosphere ensures consistent porosity and hardness (HRB) across every batch.

Disclaimer: All manufacturer's names, OEM part numbers, and descriptions (e.g., Komatsu) are used for identification purposes only. Our products are high-quality aftermarket replacement parts and are not products of the original manufacturer.

Global Sourcing for Komatsu Friction Parts? Contact our technical sales team today for full specifications and competitive pricing on our Komatsu series inventory.
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