Tri-Metal Big End Bearings PSA 2.0 16V EW10J4 EW10J4S

The Tri-Metal Big End Bearing sets from ACL RACE and King Racing for EW10J4 and EW10J4S engines are made up of 8 bearing shells.

Technical specification

• Crank pin diameter (min/max): 44.975 / 44.991mm
• Big end diameter (min/max): 48.655 / 48.671mm
• Max thickness: 1.821mm
• Sizes: standard or standard with HX clearance, or +0.30mm oversize
• Anti-friction coating: none
• References: 4B7736, 4B7736H-STD, 4B7736HX-STD, 4B7736H-.30

ACL Race Series tri-metal bearings are manufactured to exacting tolerances. CNC machining is carried out to micron accuracy before metrology checks of the diameters, thickness and width of the ACL Race Series tri-metal bearing. This ensures the ACL Race Series bearings deliver a reliable, consistent fit in your performance engine. ACL Race Series tri-metal bearings are actually made up of 4 layers:

• SAE1010 steel on the outside
• 0.3mm copper alloy
• 0.0001mm nickel
• Copper alloy from 0.013 to 0.018mm

This material strategy, combined with the manufacturing process, makes ACL Race Series tri-metal bearings more resistant to increases in power, torque or engine speed. The compression resistance of ACL Race Series tri-metal bearings delivers reliability even with turbo or supercharger builds running high boost, or high-revving, sharp-response engines.

Technical specification

• Crank pin diameter (min/max): 44.98 / 44.99mm
• Big end diameter (min/max): 48.66 / 48.67mm
• Max thickness: 1.819mm
• Sizes: standard or standard with HX clearance, or +0.30mm oversize
• Anti-friction coating: none
• References: CR4603, CR4603XP, CR4603XP STDX, CR4603XP0.3

Since 1960, King Racing has designed and manufactured high-performance, high-quality bearings. Beyond its high-performance production machinery, King Racing relies on simulation software to analyse the thermodynamics, dynamics and elasto-hydrodynamics of its bearings. King Racing tri-metal bearings are produced in pMax Black, a tri-metal alloy 24% stronger than any existing tri-metal bearing.

King Racing bearings are made up of 3 to 4 layers, depending on the application:

Outer layer: steel Intermediate layer: lead bronze Inner layer: babbitt alloy with a high copper content Anti-friction coating containing lubricant and ceramic additives