![]() Such as cleanliness, alignment, clearances, journal surface finishes, and It can withstand several times the load that will cause babbitt to fatigue or extrude,Īlloy is much harder and stronger, it is less compatible with dirt, orĪs such, when performance cam bearings are necessary, greater precision is required to maintain bearing performance and reliability, Mahle officials say. Manufacturers have turned to aluminum alloy as a babbitt metal replacement, as ![]() Aluminum Alloy Replaces Babbitt Metal Bearing Lining for Hi-Po Engines “Fatigue can be identified by craters in the bearing surface where sections of lining material have flaked out,” according to Mahle’s engine bearing installation tips. As a bearing surface layer, babbitt has the physical properties necessary to survive under adverse conditions such as foreign particle contamination, misalignment, and marginal lubrication on start-up, according to the bearing experts at Mahle.Įngines are making more power, which produces higher operating temperatures and ![]() bearings, according to Wikipedia), with small amounts of lead or copper and antimony.īabbitt’s soft and slippery composition is similar to solder. For many years, nearly all automotive camshaftīearings were manufactured with a babbitt-metal lining.īabbitt metal is a soft metal comprised mostly of tin (86 percent for Ford Motor Co. ![]()
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