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Frictional Performance Test for Transmission and Drive Train Oils
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English
Abstract
Lubricating oil affects the performance of friction materials in transmission, steering and brake systems. The TO-2 Test measured friction retention characteristics of lubricating oils used with sintered bronze friction discs.
This paper introduces a new friction performance test for drive train lubricants that will be used to support Caterpillar's new transmission and drive train fluid requirements, TO-4, which measures static and dynamic friction, wear, and energy capacity for six friction materials, and replaces the TO-2 test. The new test device to be introduced is an oil cooled, single-faced clutch in the Link Engineering Co. M1158 Oil/Friction Test Machine.
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Citation
Rogers, C. and Post, B., "Frictional Performance Test for Transmission and Drive Train Oils," SAE Technical Paper 910745, 1991, https://doi.org/10.4271/910745.Also In
References
- Cave W. H. Michael M. I. “A New Look at Multipurpose Power Transmission Fluids.” Paper 870357 SAE International Congress and Exposition Detroit, MI February 1987
- McLain J. A. “Oil Friction Retention Measured by Caterpillar Oil Test No. TO-2.” Paper 770512 SAE Earthmoving Industries Conference Peoria, IL April 1977
- Papay A. G. Hartley R. J. “Frictional Response of Automatic Transmission Fluids in Band and Disc Clutches.” Paper 890721 SAE International Congress and Exposition Detroit, MI February 1989
- Olson A. B. “Evaluation of Friction Materials.” Paper 720366 SAE Earthmoving Industries Conference Peoria, IL April 1972