ACL Race Series Main Bearing Set 0.25mm Oversized RB26DETT For Nissan – Terra Firma Automotive

ACL Race Series Main Bearing Set 0.25mm Oversized RB26DETT For Nissan Skyline GTR R32 R33 R34

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  • $95.99
  • Regular price $152.00

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The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings. Features include:


  • 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.


Description Main Bearings;  Main Bearings; Tri-Metal; Upper & Lower; Flange in Position 4

Oil Clearance Standard

Size  .25

Max Std Shaft Size  2.1644" (54.975mm)

Max Wall at Crown 0.0719" (1.827mm)


Max Overall Length 1.063" (27.00mm) w/ 2428H/HX Flange 0.787" (20.00mm) w/ 2429H/HX

Max Std Tunnel Size 2.3094" (58.658mm)

Min Std Tunnel Size 2.3089" (58.645mm)

Min Std Shaft Size 2.1634" (54.951mm)


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