On 4/6/2013 12:02 PM, Spalted Walt wrote:
On Sat, 06 Apr 2013 09:51:50 -0500, Leon lcb11211@swbelldotnet wrote:

On 4/6/2013 8:40 AM, Spalted Walt wrote:
Has anyone replaced arbor bearings on a Unisaw? If so, did you do it without
removing the table top, or did you remove it first?

This article makes it sound fairly simple without removing the top OR the arbor
bracket, only the arbor shaft:
http://www.woodcentral.com/bparticle...bearings.shtml

The procedure on sawcenter.com has the top removed AND he removes the whole
arbor assembly as well.

My Unisaw is a model 36-844, circa 2001. I changed the belts yesterday, and
while the belts were off, I could hear the sound of dry clicking bearings when I
spun the blade by hand. There is no slop and they still spin freely but I
figured it would be best to go ahead and change them out.

I'll be replacing the originals with 2 quality Nachi bearings:
http://www.amazon.com/6203-2NSE-Bear.../dp/B0045E0E8U

Any input?




I have never ever done this but here is something to think about.

I highly suspect that after removing the arbor and replacing the
bearings that the blade is not going to end up exactly where it was
before the bearing replacement. If you are worried about upsetting
blade alignment by removing the top you may not be making things easier
by not removing the top if the alignment still has to be reset.

What I'm actually more worried about is the weight of the top (I'll be doing
this solo). With the wing removed I believe I can manage it. Any idea what the
weight of the top is?


It will be heavy, but that is relative. I would imagine in the 100lbs
range.

But if you do pull that top off there will probably be shims at each or
some of the corners between the top and the cabinet. You will want to
make sure that they go back in the right place.