Rod Bearing Wear

[Chris "drooze" Wertman]

Originally Posted by Chris Hill

I'm not really sure if rod bearing life is a hp or a rpm issue or a combination of the two.

My gut says it's more of a rpm issue rather than a hp issue, but I still need to prove it.

LOTS of things, lots lots lots, rpm, clearances, oil system, load, etc etc.

Ive had bikes spinning 12k+ for 90% of their track time with no appreciable bearing wear. Ive had Harleys same (XR750's) and other Harleys that ate bearings like they were crank food. Machine work, finsih. bearing material on and on and on.

Im still a bit sketcy on clearances with the H bearings compared to other stuff, and I think Im seeing some side loading on my bearings which well...that a biggie for certain failure.

Not the right guy to be answering it, I guess Im agreeing in part, basically there are a ton more things than even I normally think of.