The ACL Race Series Main Bearing Set in STD size is a high-performance crankshaft bearing set designed for precision engine building. With a product code of 5M7298HX-STD, this set is part of the Race Series lineup from ACL, a renowned brand in the automotive industry.

This bearing set features a Tri-Metal construction for durability and performance, with 0.001" extra oil clearance for optimal lubrication. The set includes bearings for positions 1, 2, 4, and 5, with standard shaft diameters of 2.5588"/2.5593" (64.993mm/65.007mm) and maximum wall thickness of 0.0952" (2.417mm). The housing bore sizes are 2.7509"/2.7515" (69.873mm/69.887mm), and the maximum lengths are 0.8050" (20.450mm) for positions 1, 2, 4, and 5, and 1.0280" (26.100mm) for position 3.

ACL has been manufacturing precision engine bearings in Launceston, Australia for over 70 years, serving as a major OEM supplier to the automotive industry and providing a comprehensive aftermarket product range. The company's Race Series bearings have a strong pedigree in motorsport, with a history of success in Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally.

The ACL Race Series Performance Engine Bearings are known for their robust metallurgy, quality, precision, innovation, and performance, making them the top choice for engine builders worldwide. With ISO 9001:2015, ISO14001:2015, and ISO45001:2018 certifications, ACL ensures high standards of quality, environmental management, and occupational health and safety in their manufacturing processes.

In conclusion, the ACL Race Series Main Bearing Set in STD size is a top-quality product that combines precision engineering, durability, and high performance, making it an ideal choice for enthusiasts and professionals alike. Upgrade your engine with ACL bearings for reliable and efficient performance.