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

The +0.75mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.75mm. This is a common practice during engine rebuilding to ensure proper oil clearance with a refinished crankshaft.

What is the Tri-Metal material construction?

King's Tri-Metal construction uses three distinct layers: a steel backing for structural integrity, a copper-lead alloy layer to handle heavy loads, and a babbit overlay for reduced friction and improved conformability to the crankshaft.

What is the purpose of the SV groove design?

The SV groove design is intended to enhance oil distribution throughout the bearing surface. This improved oil flow helps to maintain a consistent oil film, reducing friction and wear, especially under demanding operating conditions.

Specifications

Brand: King Engine Bearings
Part #: MB4532SV0.75
UPC: 611500630323

King Engine Bearings Mercedes Benz Om 642.822/36/910/20/30/70 (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Mercedes Benz Om 642.822/36/910/20/30/70 (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mercedes-benz-om-642-822-36-910-20-30--t14-770403
Price: 291.43 USD
Availability: BackOrder

$291.43

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King Engine Bearings main bearing set for Mercedes Benz OM 642 engines. Size +0.75mm.

Key Features

Fits Mercedes Benz OM 642.822, 642.36, 642.910, 642.20, 642.30, and 642.70 engines.
Main bearing set is sized +0.75mm for use with machined crankshafts.
Features King's Tri-Metal material construction for strength and durability.
Includes an SV groove design to improve oil flow to the bearing surfaces.
Steel backing provides a strong foundation for the bearing layers.

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About this part

Product Details

King Engine Bearings is well-known for making solid engine components, and this main bearing set is a great example of their work for Mercedes-Benz OM 642 engines. If you're rebuilding the bottom end of your engine, these bearings are designed to handle the loads and keep everything running smoothly. This specific set is sized +0.75mm, which is important if you're dealing with crankshaft journals that have been machined to that size.

These bearings feature King's unique Tri-Metal material construction. This means they have three layers: a steel backing for strength, a copper-lead alloy for load carrying, and a babbit overlay for reduced friction. This combination helps them stand up to the demands of the engine while also protecting the crankshaft. The SV groove design is also notable, as it helps to improve oil flow to the bearing surfaces, which is critical for preventing wear, especially in high-performance or heavily used engines.

When installing these bearings, it's crucial to ensure your crankshaft journals are clean and within the specified tolerance for the +0.75mm size. Proper oil clearance is key to their performance and longevity. Always refer to the manufacturer's installation instructions for precise details on assembly and lubrication.