This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Improvement of Aluminum-Lead Bearings by New Manufacturing Method
Annotation ability available
Sector:
Language:
English
Abstract
A sintered aluminum-lead alloy of the bimetal type was manufactured in Japan (1977), and has been widely used in main and crankpin bearings for automobile engines. However, the recent trend of automobile engines toward high power output, light-weight and compact construction increases the bearing load. As a result, the margin of fatigue strength of the conventional sintered aluminum-lead alloy has been diminishing.
In this paper, a new method of manufacturing bearing material by the hot extrusion process is reported. The new method makes it possible to produce the optimum lead grain distribution and strong adhesion between powder particles. The new manufacturing method produces the aluminum-lead bearing material which has 30% or more increase in fatigue strength over the conventional sintered aluminum-lead bearing material.
Recommended Content
Aerospace Material Specification | Type 12 10% Mineral, 2.5% Molybdenum Disulfide Filled Virgin Polytetrafluoroethylene (PTFE) Moldings or Extrusions |
Technical Paper | Surface Finishing/Compression Molding SFC: The Valyi™ Process |
Technical Paper | Finite Element Modeling of Adhesive Joint Behavior for Automotive Applications |
Authors
Citation
Ogita, Y., Ido, Y., and Sakamoto, M., "Improvement of Aluminum-Lead Bearings by New Manufacturing Method," SAE Technical Paper 900123, 1990, https://doi.org/10.4271/900123.Also In
References
- Pratt G. C. “New Development in Bearing Material” SAE Paper 690112
- Bierlein J.C. et al “Performance Characteristics of General Motors Aluminum-Babbit Bearing Material” SAE Paper 690113
- Mackay M. L. et al “A New Aluminum-Lead Bearing Material for Automotive Engine Service” SAE Paper 760113
- Pratt G.C. et al “Progress with Aluminum-lead Crankshaft Bearing Alloy” SAE Paper 890552