SYMPOSIA PAPER Published: 01 January 1963

Effect of Lubricant on Automatic Transmission Clutch Plate Durability


Clutch plate durability in an automatic transmission has been correlated with fluid-clutch plate coefficient of friction and clutch energy absorption. These values were computed from measurements taken during the dynamometer operation of a conventional engine and automatic transmission combination. The variables measured for these computations were transmission output shaft torque, output shaft speed, clutch drum speed, and clutch-apply pressure.

Author Information

Davison, E.
Research Laboratories, General Motors Corp., Warren, Mich
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Developed by Committee: D02
Pages: 162–188
DOI: 10.1520/STP43717S
ISBN-EB: 978-0-8031-5980-8
ISBN-13: 978-0-8031-6134-4