Balance Shaft Bearings

Bert · Post by **Bert** » Sat Nov 10, 2012 12:27 am

My engine is being rebuilt at the moment and I need some new bearings for the balance shaft.
I admit I haven't tried my local bearing supplier yet, but with these having a locating pin I get the feeling they may be difficult to get.

Has anyone got any info on these ?

Bert

Bert · Post by **Bert** » Mon Nov 12, 2012 3:49 am

Awwww C'mon
Someone must have something to say about these bearings, where can I get some ?

mj43 · Post by **mj43** » Mon Nov 12, 2012 1:19 pm

I am not sure the pegged bearings are available? Bearings with the stepped shoulder are, these then need to be modified to add the peg.
Heard somebody went down this route - had hole for peg spark erroded. Never looked in to it myself so cannot comment further - sorry.

buzinc · Post by **buzinc** » Mon Nov 12, 2012 2:13 pm

If its any help.

I had an RD250 air-cooled twin crank rebuilt 6/7 years ago, and the re-builders drilled and put pins in the main bearings. They ground down the original pins and re-drilled in new ones at a different part of the bearing. When I enquired why, the reason was the original pins sometime start to rotate in the crankcase half's!

But what I'm saying is, new pins can be done!

Dont mind be corrected on this one, but I have not known anybody having to replace these bearings!

Have you looked at this link?

viewtopic.php?t=8284&highlight=balancer+shaft

buz

headcoats · Post by **headcoats** » Mon Nov 12, 2012 2:58 pm

Couldn't you use bearings without the pegs and just use bearing lock ?