King Engine Bearings Main Bearing Set XP Series Tri-Metal Performance

The King Engine Bearings XP Series Tri-Metal Performance main bearing set is made for high-load engines. These crankshaft main bearings suit performance and racing builds that run forged steel crankshafts under sustained, heavy stress, such as circle track, drag, road racing and off-shore use.

Key Features:

• Enhanced tri-metal construction: A copper-lead intermediate layer, a nickel barrier and a hardened Babbitt overlay sit on a steel backing.
• pMaxBlack overlay: A proprietary nano-scale hardening process strengthens the overlay for better load capacity and fatigue resistance.
• SecureBond adhesion: This bonding process improves stability between the layers for long-term durability.
• Bull's Eye Tolerance: Precision machining, overplating and computerized wall-thickness monitoring keep shell-to-shell thickness very consistent, which helps hold accurate oil clearances.
• Improved oiling: Enlarged, chamfered oil holes help oil flow to the bearing surface.
• Geometry for performance engines: The mains are narrowed for large-radius crankshafts, and the design promotes even load distribution.

King Engine Bearings has built nothing but engine bearings since 1960. The XP Series is engineered for engines that make high power and run at high RPM. It is a durable choice for engine builders who need a main bearing with strong load capacity and consistent sizing.