What does '0.025mm Oversized' mean for these rod bearings?

This means the bearings are slightly larger in diameter than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.025mm, ensuring proper oil clearance and a snug fit.

What is the advantage of tri-metal construction in engine bearings?

Tri-metal bearings use multiple layers of different metals, each selected for specific performance characteristics. This construction offers a good balance of strength, embeddability (ability to absorb small debris), and conformability (ability to adapt to the crankshaft surface) for demanding engine conditions.

Are these bearings suitable for a stock RB25DETT or RB26DETT engine?

These bearings are specifically 0.025mm oversized, meaning they are intended for engines where the crankshaft has been machined. For a stock, unmachined crankshaft, you would typically need standard size bearings.

1991-2002 Infiniti G20 Rod Bearings | ACL 6B2960H-.025

Name: ACL Nissan RB25DETT/RB26DETT 0.025mm Oversized High Performance Rod Bearing Set
Brand: ACL
SKU: acl-acl-nissan-rb25dett-rb26dett-0-025mm-oversized-high-performance-rod-bearing--t14-12963
Price: 63.36 USD
Availability: InStock

ACL Nissan RB25DETT/RB26DETT 0.025mm Oversized High Performance Rod Bearing Set

$63.36

Only 4 left in stock

Fits 1991-2002 Infiniti G20. ACL high performance rod bearings, 0.025mm oversized, for RB25DETT/RB26DETT engines. Essential for engine rebuilds.

Key Features

Fits 1991-2002 Infiniti G20, 1995-1998 Nissan 200SX, 1991-1993 Nissan NX, and 1991-2001 Nissan Sentra.
High performance rod bearing set from ACL.
Bearings are 0.025mm oversized for use with a machined crankshaft.
Features a tri-metal construction for strength and durability.
Designed for RB25DETT and RB26DETT engine applications.

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Product Details

When you're rebuilding an RB25DETT or RB26DETT engine, especially if you've had the crankshaft machined, using the correct size rod bearings is critical. These ACL high-performance rod bearings are precisely 0.025mm oversized, designed to give you a perfect fit on a crankshaft that's been ground down to that specification. ACL has been making engine bearings for a long time, and they're known for their well-built products that hold up under demanding conditions.

These bearings use a tri-metal construction, which is a standard for high-performance applications. This means they have multiple layers of different metals, each chosen for specific properties like strength, embeddability, and conformability. This layered approach helps them handle the high loads and temperatures found in performance engines, ensuring consistent oil clearance and reducing wear. Using bearings that are the correct size for your machined crankshaft is key to proper oil pressure and engine longevity.

If your RB engine build involves machining the crankshaft, these 0.025mm oversized bearings are the ones you'll want to ensure proper clearances and oil flow. Make sure to check your crankshaft's actual journal size after machining to confirm this is the correct bearing size for your build.