Other threads have detailed my journey to get rid of some vibration in
my saw caused by pulleys and trying to get to a link belt system.
Motor pulley of cast aluminum with too large of a BOLT in the keyway.
Resolved with a proper set screw.
Bought a V-Link belt, it would not track in the pulleys, changed to a
simple replacement belt. This belt still had pretty bad vibration.
Chnaged to a micro v belt, substantial improvment in vibration, but
still too much. Items at end of table and 52" of fence shake 1/4" or
Tried removal of arbor pulley. Would not budge. Contacted Jet tech
support that indicated there is only 1 keyway it would come off.
2 hours of extreme persusion with a 3' prybar resulted in a shattered
cast aluminum pulley from the arbor, and evidence the pulley had
wallowed a bit and torqued into the keyway.
Took a trip to the bearing store. Find out the arbor is machined by
Jet to some goofy metric size. Jet is unwilling to advise the size as
it is a replacement part, rep couldn't tell me if Jet replacement
pulley was machined.
Last night I _removed_
the arbor and it's bearings. Both bearings
felt extremely gritty in revoltion. One "calmed down" after a few
dozen revolutions and is probably pretty good. But the other bearing
is still gritty and I suspect adds to the vibration right at the blade
I have done some extensive searching on line for machined pulleys.
Sent off a couple of emails, so perhaps will get an answer on Monday
about the funny arbor size (.581). The local bearing shop is going to
see about reaming out a half inch (1/2") machined pulley to the proper
size and cutting the keyway back in.
END OF SUMMARY
What is the proper proceedure for reinstall of the bearings and the
arbor? I assume I tap the bearings into the trunion first, then tap
the arbor through? Thought I would put the arbor in the freezer over
night to make is slightly small for the easiest installation.