Progress with Aluminum-Lead Crankshaft Bearing Alloys
890552
02/01/1989
- Event
- Content
- A new casting process has been developed for the widely-used unplated aluminum-lead passenger car engine bearing alloy A1-6Pb-4Si. This new process, which imparts a very high quench rate to the alloy, results in a much finer metallurgical structure as compared to the current product. The fine structure is responsible for a significant improvement in bearing fatigue life. Data are presented which demonstrate this improvement both in dynamometer engine testing and in fatigue test machines. Score-seizure testing shows no loss in anti-seizure properties.
- Pages
- 16
- Citation
- Pratt, G., and Whitney, W., "Progress with Aluminum-Lead Crankshaft Bearing Alloys," SAE Technical Paper 890552, 1989, https://doi.org/10.4271/890552.