ACL Engine bearings - race series
If you place demands on your engine… demand the best!
ACL has a proud & rich history in Motorsport – it is in our DNA. There is no better proving ground than the racetrack whatever it's configuration. In the heat of competition proven technology always comes through.
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 1. Further experience in the Australian Supercars Championship & numerous other race codes has culminated in the current ACL RACE Series technology platform. The unique combination of design, metallurgy, engineering & precision quality control come together to deliver what engine builders expect from performance engine bearings
Whatever your application we have you covered – if you are looking for the best – demand the best.
FEATURES OF ACL RACE SERIES PERFORMANCE ENGINE BEARINGS
Precision Manufacturing
Bearing Material Enhancements
A blend of characteristics to provide high strength and crankshafts. excellent seizure resistance.
No flash plating is applied to further improve bearing retention and maximise heat transfer.
ACL Race Series performance engine bearings are identified from the standard range by the following suffixes:
H = ACL Race Series
HX = ACL Race Series with 0.025mm (0.001") extra clearance
HD = ACL Race Series with location dowel holes.*
HXD = ACL Race Series with 0.025mm (0.001") extra clearance and location dowel holes.*
*Connecting rod bearing applications only
Bearing Design Enhancements
Crush increased for:
Improved bearing retention from higher radial contact pressure. Locks the bearing into the housing.
More effective heat dissipation through improved thermal transfer.
Bearing Eccentricity
Definition: Gradual reduction in wall thickness between the crown and parting line.
ACL Race Series performance engine bearings feature increased eccentricity to increase improve shape adaptation to compensate for bore distortion at high speed operation.
Assists in the formation of hydrodynamic oil film.
Main Bearings with Extended Grooves
Full (180o) grooved uppers with matching partial groove in lowers.
- Reduces interruption to big end oil supply.
Tapered groove run-out.
- Smooths big end supply cut-off avoiding pressure pulsing and cavitation.
Enlarged ID Chamfers
Accommodate larger fillet radii on performance crankshafts.
Comparison of ACL Materials
