BMW M20 | M52 | M54 | S50 | S54 | M3 KING RACE Main Bearings

pMax-Black.

pMaxBlack combines a unique tri-metal structure with advanced surface processes to deliver superior load capacity.

Intermediate layer

The intermediate layer of a typical race bearing contains 2-3% tin, with hardness values of 90-95 HV. For a superior pMax Black intermediate layer, we increased the tin content to 4.5%, making it 22% harder (115 HV), with a load carrying capacity of 17,000 psi.

pMaxBlack Overlay

The overlay of a typical high performance bearing consists of a leaded alloy that contains 2-3% copper. It achieves a hardness level of 11 14 HV, and a maximum load capacity of 8,000-8,500 psi.

The pMaxBlack overlay contains 5% copper. It is further strengthened by a proprietary nano-scaled hardening process that modifies the molecular structure and creates a black fatigue-resistant shield. The outcome is a significant 29% increase in overlay hardness (18.1HV) and overall 24% increase in load capacity (10,200 psi).

See pMax Black on YouTube

Weight	0.7 kg
Dimensions	29.5 × 11 × 5.5 cm
Alternatives	081HS19400000, 7M1532H STD, 7M1532HX STD, 87369600, H023/7 STD, MB7039XP STDX, MB7102AM STD
Part Type	Main Bearings
Material Type	pMax Black Racing
No of Bearing Pairs	7 Pairs
Bearing Thickness	2.494mm
Bearing Width	25.039mm
Housing Size	65.001 – 65.019mm
Crank Size	59.972 – 59.990mm
Standard Or Performance?	Performance