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The Bearing Specialists - 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 AM Series

AM 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.


The SI Series

KING's "SI" bearings are made of an innovative bi-metal silicon/aluminum alloy, the newest generation of KING's Alecular bearing technology. The silicon particles in the bearings help round off high spots on the crank surface during engine operation, which reduces friction and related wear. The SI bearings also help minimize debris embedment, since hard particle debris is instantly flushed through the bearing and filtered out of the engine rather than scoring the crankshaft and causing long term damage.


The HP Bi-Metal Racing series

The HP series was developed mainly for drag race applications needing a material that is harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short duration and still offer higher embedabilty and compatibility. In response, KING developed the HP Series featuring the Alecularô metal structure.

The HP series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip and some levels of circle track racing.

HP series is particularly suitable for the following cases:
When a tri-metal bearingís Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft
When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement
When Contaminants enter the oil stream, scratching and damaging the crankshaft journals


The XP Series

Successful race engine builders are constantly pushing the limits of load capacity to new levels. Race bearings today inevitably need to match these demands with more competitive bearings. At King Racing we met the challenge with the XP high performance bearings series.

The XP series is a line of bearings with advanced metallurgical and geometric technologies that meet extreme performance loads. It was developed for all performance applications that use forged steel aftermarket crankshafts and produce high loads for extended periods.

King Racingís XP series features pMax Blackô, a unique tri-metal structure that is 24% harder than any other conventional tri-metal race bearing. pMax Blackô together with the XP geometric features are the ideal combination for performance racing. For more on King Racing technologies visit TechLabhest quality materials and the most advanced designs to ensure complete customer satisfaction.