1989-02-01

Progress with Aluminum-Lead Crankshaft Bearing Alloys 890552

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X