Clevite P-Series Tri-Metal Main Bearing Set

The Clevite P-Series Tri-Metal Main Bearing Set is an engine crankshaft main bearing line built for rebuilders and engine builders. It is made for demanding street, performance and heavy-duty applications. P-Series bearings are the oldest members of the Clevite 77 bearing family. They were designed for high-revving engines that put high loads and distortion on the bearings.

Key Features:

• Tri-metal construction: a steel backing for support, a cast copper-lead intermediate layer to handle engine loads, and an electroplated babbitt overlay on the running surface.
• High eccentricity and high crush: helps compensate for the distortion and load factors of high-performance engines. It also helps hold the bearing securely in place.
• Thin overlay: an extra-thin overlay helps resist overlay fatigue.
• Oil groove design: most applications have grooves that extend around both bearing halves, which improves oil flow and lubrication.
• Multiple sizes: sets are offered in standard and undersize options, depending on the part number, to match a machined crankshaft.

Tri-metal main bearings offer more seizure resistance than bi-metal designs. They are a popular choice for engine rebuilds, performance builds and towing or diesel applications. Choose the correct part number for your engine and crankshaft size. Undersize bearings require a properly machined crankshaft.