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Current Design Trends of Sleeve Bearings and Thrust Washers in Passenger Car Automatic Transmissions
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Event:
Mid-Year Meeting
Language:
English
Abstract
A study of 10 current production passenger car automatic transmissions with respect to environment, bushing and washer material, journal and thrust runner materials and finishes, loads and speeds, and grooving was conducted to compare results with an earlier study made in 1961. A second objective was to present results of a test program to determine effect of bushing and shaft surface finish on performance of copper-lead, babbitt, and aluminum bushing materials.
Test results showed load capacity is largely dependent on shaft and bushing surface roughness. Also, that babbit and copper-lead bushings are preferred for applications in which edge-loading and marginal lubrication are encountered.
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Citation
Pesek, L. and Smith, W., "Current Design Trends of Sleeve Bearings and Thrust Washers in Passenger Car Automatic Transmissions," SAE Technical Paper 680426, 1968, https://doi.org/10.4271/680426.Also In
References
- Parthum Joseph J. “Improving the Performance of Sleeve Bushings and Thrust Washers in Transmissions.” SAE Mid-Year Meeting Detroit May 1968 680425