I have a delta 34-450 unisaw from the late 70’s (1 1/2hp) which we have been discussing in another post, and I have stumbled across something different in its construction that I wanted to ask about.
The inner arbor flange on my saw is not press fit onto the arbor, but instead slips on and off freely. When the nut is tightened, the arbor is pressed against the inner bearing sleeve which prevents it from rotating freely.
Is this common in older unisaws, or is there something odd about my particular saw?
vincent
Replies
I can't recall ever seeing a press fit inner arbor flange. They are typically one piece. The big difference on the old and new saws was the extended inner race on the bearings. Longer busings compensate for that. The extended inner race was on saws before the 70's I believe. I aways rebuilt them with the newer style bearings and new bushings. Far cheaper.
thanks rick,I wonder how my saw got to be the way that it is (separate flange)...Anyway, the runout is more than it should be with the current setup. I think sometime in the near future I'll go ahead and do a full rebuild-
Arbor, bearings, spacers... I have a friend who can help with this since I've never done bearings on a machine like this. thanks,Vincent
The other thread on this saw is a joke . The inner flange on all Unisaws are pressed onto the arbor shaft then ground true to the shaft. The inner flange should not come off without pressing it off. Sounds like you need to purchase a new arbor assembly and replace the 6203 bearings with sealed units. Not a big job, don't even need to remove the top. I've rebuilt dozens of Unisaws and always have the arbor flange reground. The arbor outer washer is another story.
DJK
Thanks-I'll go ahead and order a new arbor and bearings and spacers.
I thought something seemed strange about the arbor flange being a separate piece. Vincent
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