1983-02-01

Design-Development, Phenolic Disc Brake Piston 830621

More than 25,000,000 phenolic disc brake pistons have been produced since first introduced in 1976. This innovative use of a nonmetallic material continues to provide performance advantages over the chrome-plated steel it replaced.
Phenolic pistons have been approved, or are being evaluated, by brake and automotive engineers, worldwide.
To achieve this broad acceptance and to meet brake performance demands, it was necessary to introduce and implement several modifications and additions to the original piston design concept.
This paper will describe several of the improvements and demonstrate how they improved the quality of the piston.

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