Development of New Friction Material for Heavy Duty Application

Paper #:
  • 941762

Published:
  • 1994-09-01
Citation:
Kuse, T., Nakazawa, S., Shibata, A., and Fujihara, M., "Development of New Friction Material for Heavy Duty Application," SAE Technical Paper 941762, 1994, https://doi.org/10.4271/941762.
Pages:
13
Abstract:
Studies into a material to improve the power density of powershift transmissions and brake systems have revealed that the porosity and elasticity of wet friction materials have a large influence on dynamic friction coefficient and energy absorption capacity. From this basic idea, a new wet friction material for heavy-duty application has been developed.This friction material is a resin molding composed principally of high heat-resistant resin, graphite and fibers. Its advantages include a far higher energy absorption capacity than current sintered bronze material, a high friction coefficient, excellent slip endurance, and high thermal stability. These characteristics are mainly the result of a manufacturing method which provides low elasticity and high porosity, as well as necessary strength.The results of extensive testing confirmed the concept of the new friction material.
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