Descripción
Race™ Main Bearing Set (5M1957H-STD) by ACL®. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Race Series engine bearings. ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville – from sport compact drift racing to small block NASCAR, IHRA and NHRA cmpetitions. The unique combination of design, metallurgy and engineering provides Race Series performance bearings with he endurance and capability to perform where others cannot. The ACL RACE Series performance engine bearing range of today has a strong pedigree in motorsport & traces its roots back to the 1960’s with the manufacture of engine bearings for use in the world conquering Brabham Formula. The unique combination of design, metallurgy, engineering & precision quality control come together to deliver what engine builders expect from performance engine bearings.
Specifications:
Size: Standard
Min Shaft Size: 2.1646″
Max Shaft Size: 2.1654″
Min Tunnel Size: 2.3228″
Max Tunnel Size: 2.3236″
Max Wall Size: 0.0788″
Max Overall Length: 0.787″
Oil Clearance Size: Standard
Quantity: 10 Pieces
Half Type: Upper and Lower
Features:
High strength overlay plate with reduced thickness for improved fatigue properties
Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing
Increased crush for improved bearing retention
Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing
Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films
3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings
Tight consistent wall tolerances to help you maintain consistent clearances
Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts
ACL® Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville – from sport compact drift racing to small block NASCAR, IHRA, and NHRA cmpetitions. The unique combination of design, metallurgy, and engineering provides Race Series performance bearings with the endurance and capability to perform where others cannot. These exceptional bearings are available for a variety of American, Asian, and European performance engines.
Brand:ACL
Part Number:5M1957H-STD
Alternate MPN:5M1957HSTD
