ACL Bearings 4B2821-.50 Connecting Rod Bearing Set Oversize - 0.50mm

The ACL Bearings 4B2821-.50 is a precision-engineered connecting rod bearing set designed for high-performance and racing applications. This set features 0.50mm oversize bearings, intended for crankshafts that have been ground undersize during rebuilding or performance modification.

Key Features:

• Tri-metal construction with lead, tin, copper, and nickel for superior strength and seizure resistance
• High-strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backing on all rod bearings to improve bearing lining support and retention
• Elimination of flash plating on bearing backs to improve heat transfer and maximize grip
• Increased eccentricity to compensate for bore distortion at high RPM
• Designed to withstand elevated RPM conditions and increased loads
• Tight consistent wall tolerances for maintaining precise oil clearances

ACL Race Series bearings are recognized throughout the motorsports industry and are standard components in race engines that have set records and won championships across various racing disciplines. The unique combination of advanced metallurgy, precision engineering, and race-proven design delivers the durability and performance demanded by professional engine builders and racing enthusiasts.