Journal Bearing shaft wear or peittings

[Mohamed Gaballah]

how to decide wear or pettings on shaft surface of journal bearing
to what range they are accepted or shaft needs replacement

 

[Tmoose]

What did the equipment manufacturer have to say in the O&M manual, or on their tech line?

Hydrostatic or hydrodynamic ?

Heavy duty truck or automotive ?

https://www.mahle-aftermarket.com/m...s-and-literature/engine-bearings/eb-40-16.pdf

The attached pdf has the "good stuff" from page 177.
Note roundness, size, taper, surface finish, and even the direction of journal polishing can profoundly affect hydrodynamic bearing life.
All is good, until it is not.