The front bearing locates the spindle assembly and the rear bearing floats in the bore, pretty simple to see from the print, even if his has a single wide bearing in the front rather than double.
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On Jan 13, 2021, at 2:23 PM, David Kumm <
davekumm@...> wrote:
Joe, that rear bearing looks to have a spacer on the inner ring to trap the bearing.? I wonder if the bearing changed or on earlier versions a bearing with an extended inner ring was used.? Those types of bearings became hard to source so Tanny might have decided to add a spacer rather than change their castings to accept a different thickness bearing.? totally just guessing here but I don't see many bearings just floating on a spindle.? Dave
Another question on my rebuild project.? The saw was built with open cage bearings and large grease reservoirs.? Upon the advice of some on FOG I went with sealed bearings.? The bearings I removed front and rear were the same, same size, steel shields.? Now I found a parts diagram from Tannewitz and they show a double row bearing for the wheel side which makes sense.? Also it looks like the double row bearing would seat in position and the rear bearing floats in the housing.? I will measure the space for the front bearing to ensure its sized for a standard bearing width.? ?It looks like a past owner put the wrong bearing in the front.? Any reason not to use a double row bearing?? Based on the quality of the machining from Tannewitz I am pretty sure alignment would not be an issue.? Also with the smaller single row bearing on both sides it looks like the upper wheel / shaft / bearing assembly could move back and forth.? the bearings are a press fit but still seems odd.? Pic attached from the manual.
