BBC Roller Thrust Bearing .142 Thickness

The BBC Roller Thrust Bearing .142 thickness by COMP CAMS is a precision component designed for high-performance applications, particularly in big-block Chevrolet (BBC) engines. This bearing is essential for managing the thrust forces generated during acceleration and deceleration, ensuring reliable crankshaft support under extreme load and RPM conditions. Whether you're building a street performance motor or a competition-grade powerplant, this thrust bearing is crucial for preventing crank walk that can lead to engine failure.

The roller thrust bearing features a .142-inch thickness, engineered to fit BBC crankshaft saddle geometry without requiring machine work. Its roller design replaces traditional bronze thrust surfaces with hardened steel rollers, which distribute side loads more evenly across the bearing face. This design reduces friction and heat, significantly improving longevity compared to older sleeve-style bearings.

Ideal for any BBC engine running significant power, including turbocharged setups, supercharged platforms, and big-displacement naturally aspirated motors, this bearing is built to withstand the rigors of high-performance applications. The hardened steel construction ensures dimensional stability across temperature variations and resists micro-spalling, making it a reliable choice for serious engine builders.