🚚 Fast, Tracked Shipping • Express Available
1 2
 |  SKU: 5M8297HX-STD

ACL Race Main Bearings Set

Subaru EJ20/EJ22/EJ25 (Thrust Position 3)
$199.95
Size
%3Cp%3EEarn%20[points_amount]%20when%20you%20buy%20this%20item.%3C/p%3E

Description

High performance driving demands that you use the best parts. So rely on ACL RACE Series Performance Engine Bearings to perform to the exacting race standards you expect. They provide the dependability it takes to hold up under higher RPM conditions.

The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance parts.

Features and Benefits

Main Bearing Features:

  • High performance Trimetal engine bearings
  • Designed to withstand higher RPM conditions
  • High strength overlay plate with reduced thickness for improved fatigue properties

 

ACL Bearing 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.

Technical Specifications

Specifications for STD size only

Sizes STD, .025, .25, .50, STD w/ 0.001" Extra Oil Clearance
Oil Clearance Standard
Half Type Identical halves
Material F780
Min. Std Shaft Size 59,984 mm / 2.3616 in
Max. Std Shaft Size 60 mm / 2.3622 in
Min. Std Tunnel Size 64 mm / 2.5197 in
Max. Std Tunnel Size 64,02 mm / 2.5205 in
Max Wall at Crown 2,005 mm / 0.0789 in
Max Overall Length
16,5 mm / 0.6496 in (8297H)
19 mm / 0.7480 in (8298H)
22,92 mm / 0.9024 in (8299H(F))
Notes For engines with thrust in #3 position. Overwidth flanges for undersizes: Std=Std, .25=Std+.10mm, .50=Std+.18mm, .75 = Std+.26mm.

Fitment Table