What does the +0.50mm size mean for these bearings?

The +0.50mm designation indicates that these bearings are 0.50mm larger in diameter than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.50mm to account for wear or damage.

What is the material construction of these bearings?

These bearings feature a bimetal construction with an aluminum base. This design helps manage heat effectively and provides good wear resistance in the critical main bearing area.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary bearings to replace the main bearings for the specified engine applications.

King Engine Bearings Main Bearing Set MB572AM0.5

Name: King Engine Bearings Mazda Vb/Vc/Ma/Na/Ub/Va (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
Price: 48.82 USD
Availability: InStock

King Engine Bearings Mazda Vb/Vc/Ma/Na/Ub/Va (Size +0.50mm) Main Bearing Set

$48.82

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King Engine Bearings main bearing set for Mazda VB/VC/MA/NA/UB/VA and Ford Courier. Size +0.50mm.

Key Features

Fits Mazda VB, VC, MA, NA, UB, VA and Ford Courier vehicles.
Main bearing set sized at +0.50mm undersize.
Constructed with a bimetal layer on an aluminum base for heat management and wear resistance.
Designed to provide proper oil clearance for crankshaft journals.

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Will this fit your vehicle?

Product Details

Built with a bimetal construction on an aluminum base, this main bearing set from King Engine Bearings is designed for engines needing a +0.50mm undersize. This specific material choice helps manage heat and wear in the critical areas of your engine's crankshaft support. These bearings are a solid option for rebuilding or repairing a variety of Mazda and Ford engines from the late 60s through the early 80s, including popular models like the Mazda 626 and Ford Courier.

When you're rebuilding an engine, especially one that's seen a lot of miles, replacing the main bearings is a key step to ensuring proper oil clearance and smooth operation. King Engine Bearings uses a well-built bimetal layer that offers good conformability to the crankshaft journal while maintaining its strength. This set is specifically sized at +0.50mm, meaning it's intended for crankshafts that have been machined down by 0.50mm to correct for wear or damage. Always ensure your crankshaft journals are properly measured and machined to the correct undersize before installing these bearings.