The ACL Race Series Main Bearing Set in STD size is a top-of-the-line performance crankshaft component designed for high-performance engines.

This half groove set features 0.001" extra oil clearance, ensuring optimal lubrication for your engine. The set includes oil feed holes in the upper shells for improved oil flow.

Constructed from ACL's Race Series Tri-Metal material, this bearing set is built to last. It is suitable for positions 1, 2, 3, 4, and 5 on the crankshaft, with a standard shaft diameter of 1.8892" to 1.8898" (47.985mm to 48.000mm). The maximum wall thickness is 0.0783" (1.988mm), and the housing bore diameter ranges from 2.0480" to 2.0492" (52.020mm to 52.050mm). The maximum length is 0.7830" (19.900mm), providing a secure fit for your engine.

ACL Race Series has over 70 years of experience manufacturing precision engine bearings in Launceston, Tasmania, Australia. As a major OEM supplier to the automotive industry, ACL has a global reputation for quality, precision, and performance. The company has a rich history in motorsport, with its RACE Series bearings being used in Formula 1, Australian Supercars Championship, drag racing, speedway, drifting, and rally.

With over 200 engine applications covered, ACL continues to expand its range to include new engine releases. The company has a high degree of vertical integration, ensuring the highest quality standards are met. ACL holds ISO certifications for Quality Management, Environmental Management, and Occupational Health & Safety Management, further ensuring the reliability and performance of their products.

Upgrade your engine with the ACL Race Series Main Bearing Set in STD size for enhanced performance and durability.