Clevite TriMetal Crank Main Bearings Set Toyota 3SGE 3SGTE. Price is for a set of 5 main cap bearings set. The majority of Clevite 77 engine bearings utilize a superior TriMetal™ design first developed by Clevite 50 years ago and perfected over time. This design incorporates the strength of a copper-lead alloy layer on a precision steel back and finally, a precision electroplated white metal "babbitt" surface layer. TriMetal is an ideal design, producing a degree of conformability, embedability, slipperiness and fatigue resistance, not found in many original equipment and competitive bi-metal bearings. Clevite 77 also offers the most extensive line of performance engine bearings in the market. Their range of performance engine bearings is designed to provide winning results even in the most demanding applications. Clevite 77 is used more often than any other bearings in cars worldwide and in most race cars. Clevite 77 manufactures a full line of exclusive TriMetal™ copper lead high performance bearings. P Series - - Typically the greatest level of eccentricity - Rods and mains have high crush for maximum retention - Most are fully grooved to maximize oil flow to rod bearings - Reduced overlay thickness to prevent overlay fatigue - Use where extremely high RPMs cause severe rod bore close-in - Use where higher eccentricity is desired to narrow bearing contact patterns