The ACL Race Series Main Bearing Set is a high-performance product designed for precision engine builders who demand the best. With a product code of 5M590HX-STD, this set is specifically for crankshafts and features a Tri-Metal construction for ultimate durability and performance.

This main bearing set includes bearings for positions 1, 2, 4, and 5 with standard shaft diameters of 2.2482"/2.2490" (57.104mm/57.125mm). The bearings offer an extra 0.001" of oil clearance, ensuring optimal lubrication and reduced friction for increased engine performance.

The maximum wall thickness of these bearings is 0.0952" (2.418mm) with housing bores of 2.4412"/2.4420" (62.006mm/62.027mm). Position 3 also includes standard shaft diameters, oil clearance, maximum wall thickness, housing bores, and a maximum length of 1.1330" (28.780mm).

ACL Race Series has a long-standing reputation for producing high-quality engine bearings, with over 70 years of manufacturing experience in Launceston, Tasmania. The brand specializes in OEM and aftermarket engine bearings, catering to a wide range of applications for the global automotive industry.

With a strong history in motorsport, ACL Race Series bearings have been used in Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally events. The performance engine bearings are trusted by engine builders worldwide for their robust metallurgy, precision engineering, and superior performance.

The ACL Race Series Main Bearing Set is part of an extensive range of engine bearings, covering over 200 applications for Australian, American, Japanese, Korean, and European engines. With a focus on innovation and quality, ACL continues to expand its product offerings to meet the demands of new engine releases.

Backed by ISO9001:2015, ISO14001:2015, and ISO45001:2018 certifications, ACL Race Series ensures that their products meet the highest standards for quality, environmental management, and occupational health and safety. Choose ACL Race Series Main Bearing Set for unmatched performance and reliability in your engine build.