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King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that includes a wide range of engine bearings for automobiles, light duty and heavy duty trucks, marine, aviation, standby power and many other types of internal combustion engines. Every King bearing utilizes the highest quality materials and the most advanced designs to ensure complete customer satisfaction.

The main grades of the King bi-metal bearings and their designations:
AM – this is the softest bi-metal material. It contains 20% of tin, 1% of copper and no silicon. AM bearings are used in the passenger cars with low and medium load gasoline engines.

SI - is silicon containing material for the medium load gasoline engines, particularly engines using nodular cast iron crankshafts.

HP - is silicon containing material for medium load high performance engines with nodular cast iron cranks and also for high load short duration engines.

The main grades of the King tri-metal bearings and their designations:
CP - the softest tri-metal material for the passenger cars with medium load gasoline engines.

SX - these bearings have higher load capacity due to the both: stronger intermediate alloy and harder and thinner babbitt overlay. The overlay of SX contains 5% of copper instead of 3% in the CP material and its thickness is decreased from 0.0007 to 0.0005". Applications of SX bearings are the passenger cars with medium-to-high load engines.

XP – these bearings were developed for high load high performance engines. Our XP bearings are easily recognizable due to their distinctive deep dark color gained from our proprietary surface hardening treatment. The hardened surface provides a significant increase (about 17%) in its load carrying capacity.