| 摘要 |
The invention relates to a big end bearing shell ( 4, 6 ) for a connecting rod ( 2 ), consisting of titanium or a titanium alloy. The shell comprises a support layer ( 8, 20 ) consisting of steel and an anti-friction layer ( 16, 26 ) for the crankshaft. According to the invention, the back of the support layer ( 8, 20 ) is clad with a layer ( 10, 22 ) of tin bronze material, with a thickness of 10-50 mum to prevent fretting corrosion and frictional abrasion.
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