Looking for some good suggestions for hydrodynamic bearing materials, such as stainless steel, cast iron. Rpms in the 7k range, loads possible to 10k plus/sq in.
Compatability with steel alloy shafting. And what about using DLC?
You don't want to use stainless in bearings.
The only bearings that I recall that handle these loads are the tri-metal connecting rod type. The are usually a steel backing with a layer of lead bronze and then a 0.001" face of babbit.
You could use CI as a backing, but it would need to be high strength.
The other surface is usually a nitrided or carborized steel.
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Rust never sleeps
Neither should your protection