How hard are the factory bushings?


"Snag" wrote in message
.. .
I have machined some replacement bushings for a motorcycle swing arm .
The inner sleeve is 4140 steel approx. 1" in diameter, there will be an
ampco 18 bushing 1.6" long riding on it . This unit will see maybe 20
degrees rotation in normal use . I was originally planning on hardening
the inner (steel) sleeve before final sizing . I do have a light duty
toolpost grinder , and can get the proper stones . I'm at .008" -.010"
oversize now for a .002 clearance fit .
I'm wondering if I need to harden them as originally planned ... or if a
nicely ground finish without hardening will give acceptable wear - I only
wanna do this once . I do have what I need to treat these , I'm just
trying to be lazy ...

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Snag aka OSG #1
'90 Ultra , "Strider"
The road goes on forever ...
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