What does the +0.75mm sizing mean for these bearings?

The +0.75mm sizing indicates that these bearings are intended for use when the engine's crankshaft journals have been machined down by 0.75mm. This is common during engine rebuilds where the crankshaft may have been resurfaced due to wear or damage.

What is Silvercore material?

Silvercore is a specialized material developed by King Engine Bearings. It is designed to provide exceptional strength and durability, allowing the bearings to withstand extreme loads and pressures often encountered in high-performance or heavily worked engines.

Are these bearings environmentally safe?

Yes, these bearings are made with a lead-free composite material, making them an environmentally safe option compared to older bearing technologies that contained lead.

King Engine Bearings BMW N55B30A Rod Bearing Set - Size +0.75mm

Specifications

Brand: King Engine Bearings
Part #: CR222SV0.75
UPC: 611500591891

King Engine Bearings BMW N55B30A Rod Bearing Set - Size +0.75mm

Name: King Engine Bearings BMW N55B30A Rod Bearing Set - Size +0.75mm
Brand: King Engine Bearings
Price: 37.50 USD
Availability: InStock

$37.50

In Stock

King Engine Bearings BMW N55B30A Rod Bearing Set - Size +0.75mm. Features Silvercore for extreme load capacity.

Key Features

Fits a wide range of BMW vehicles with the N55B30A engine.
Bearings are sized +0.75mm, intended for machined crankshaft journals.
Features King's Silvercore material for extreme load capacity.
Constructed with a lead-free composite and tri-metal copper-based material.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Built with a lead-free composite and King's Silvercore material, these rod bearings are designed to handle extreme loads. They are specifically sized at +0.75mm, meaning they are meant for an engine that has already been machined to account for wear or modifications. These bearings are a direct replacement for the connecting rod bearings in a wide range of BMW vehicles equipped with the N55B30A engine, including models like the 2013 BMW 335i, 2015 BMW M4, and 2012 BMW X3. King Engine Bearings has been specializing in engine bearings since 1960, focusing on supplying well-built components for various applications.

The tri-metal copper-based material offers a solid foundation for durability, while the Silvercore layer is engineered to withstand the high pressures found in performance engines. Because these bearings are undersized by 0.75mm, they are intended for use when the crankshaft journals have been machined down to match this size, often during an engine rebuild or repair. Always ensure your crankshaft journals are properly machined to the correct size before installing these bearings to achieve optimal performance and longevity.