I want AlMgB14 bearings and rings.

[ConnClark]

I was doing some reading and came across something interesting. There is a material that is ideal for bearings. It is AlMgB14 (sometimes called BAM) . It has a hardness that is very close to diamond and is slipperier than teflon.

Aluminium magnesium boride - Wikipedia, the free encyclopedia

it looks like a company called Newtech Ceramics has licensed the patent for the material.

[slowmover]

Have a look also at MICROBLUE RACING

[elmalouno]

dead link?

[Ecky]

It's hard, but would it withstand the beating it would take as a rod bearing? Many materials are hard but prone to shattering, and thus are no good for this type of application.

Thanks for the link though, very interesting.

[oil pan 4]

For harder piston rings you could always go with tool steel rings.
They are pretty hard, I believe you need about a #400 finish on the cylinder bores to break them. Normal bore finish these days is done with #800 grit stones or finer.