Re: Tannewitz Bandsaw Upper Bearing Question
¿ªÔÆÌåÓýI looked at the drawing wrong.? The wheel side is different, the drawing show space for a double row bearing. Mine is sized for a single row bearing, 21mm width.? The drawing matches mine bearing housing for the other end.? I am now certain that the bearings get tightened with the nuts on each end and the positing of the assembly is set by the recess for the front bearing. ? I will ask about parts diagrams.? When I called the first time and asked for a manual or any docs they said they had none.? The do have a parts book because they were able to look up the part number for a foot brake pedal that¡¯s broken. ? OWWM has all the docs I¡¯ve been able to find. Also someone is selling on ebay printouts of the docs that are free on OWWM. ? From: [email protected] <[email protected]>
On Behalf Of David Kumm
Sent: Wednesday, January 13, 2021 2:23 PM To: [email protected] Subject: Re: [FOG] Tannewitz Bandsaw Upper Bearing Question ? 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 ? From:
[email protected] <[email protected]> on behalf of Joe Jensen <joe.jensen@...> ? 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. |
Joe Jensen