Table Saw Vibration
I finally decided it was time to investigate my tablesaw vibration. The saw is a Grizzly G1023S and is 8 years old. It has had a noticeable vibration on and off for the last two years. Lately it has been more pronounced and my rips have been at least 1/32 wider than the scale on the fence - it had been nearly perfect.
I noticed considerable radial movement on the arbor and disassembled the arbor. The bearings inside race spun on the arbor. Normally, the race is tight on the shaft (the spinning portion) and loose in the housing (the non-spinning portion).
I am considering how to assemble without causing a bearing defect. The bearings have to be assembled in such a way to be sure you are pushing on the tight fitting race - not across from one race throught the rollers to the tight fitting race.
I am thinking about installing the bearings in the housings on the saw - then putting the arbor in the freezer overnight to shrink it. This should allow the arbor to slide right through the inside races of the bearings. The bearings are 6203 sealed and shielded - they are not very big. I am not sure about condensation.
I ordred the arbor shaft from Grizzly which should arrive by next weekend. I would have reverse engineered it and had a machine shop make it, but there is the flange for the blade that would be a problem. The bearings I will have tomorrow from one of our power transmission distributors (Motion Industries).
Rich (the Yooper)
"To the world, you may be one person, but to one person, you may be the world."
"Common sense is not so common."