Hawk 250 swing arm bushings

[pete]

Originally Posted by ben2go

There are roller bearings that will replace those.Tho I'm not sure what size.I've never had one, so I'm not sure exactly how the rear swing arm is set up.The bearings need an inner race,aka sleeve,to ride on, and for the bolt to clamp down on, so the swing arm doesn't bind up as it travels up and down.

So you are saying that the swing arm bushes/eyes are machined to the correct inderfearance fit & alinement for a needle race...

but you also say yer NOT sure what size & never had one...

confusing post....

what is needed is someone to measure them... not with a ruler or calipers..
get a snap gauge & micometer... So yer can check for round/ tapper /weld destortion
then it would be possable to see if a needle races can be fitted..
as a rubber bush even with a outer sleeve can be pushed in to any hole near the right size
but not so with a needle race...

Anything ealse is just quess work...

the japs line bore theres after welding/ casting so true is true...
i surspect the rubber bushs are used to stop the need to line bore
just jig welded...as the rubber is very forgiveing to misalinement...
by misalinement we are talking points of a millimeter at the eye which would
be millimeters at the other eye...



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