Shopsmith Forums

algale wrote:It certainly is a puzzle how it could have been assembled in the first place. I'd order a new two bearing quill. Then do a little destructive testing on this one to see how the heck it was built.

I agree Al. If the spline end is larger than the inside diameter of the bearing race then the spacer can not be part of the shaft. Otherwise you can't put it together in the first place. The spacer may be a very tight fit but it can not be part of the shaft. It has to come off. I would use the bearing puller and pull on the bearing and spacer together towards the quill shaft end.

On the 10ER the shaft is solid. The bearing on the spline end is installed and removed from that end. The bearing inner races is slightly larger than the splined portion of the shaft.

Check the diameter of the splined end of the shaft. A 6002 bearing calls for an ID of 15mm. If the splines measure 15mm the bearing should come off.
If it is actually a two piece shaft epoxied together then heating the shaft should soften the epoxy. Don't know why someone would put an item like this together because there would have to be some clearance room for the epoxy and I would think that would make alignment difficult.
May be just me but I wouldn't do it. JMHO.
Bill V

Probably so it couldn't be repaired, giving me another chance to keep the "mothership" afloat.

Or, maybe they didn't think the bearings would ever need to be replaced.

wa2crk wrote:Check the diameter of the splined end of the shaft. A 6002 bearing calls for an ID of 15mm. If the splines measure 15mm the bearing should come off.
If it is actually a two piece shaft epoxied together then heating the shaft should soften the epoxy. Don't know why someone would put an item like this together because there would have to be some clearance room for the epoxy and I would think that would make alignment difficult.
May be just me but I wouldn't do it. JMHO.
Bill V

I agree totally. First if the bearing will not come off the spline end it HAS to be a two piece shaft. But epoxy? Why would anyone do that? Bearings fail and sometimes need to be replaced. SS is known for making almost everything repairable particularly as simple ball bearing. If you want the spacer tight then machine to a half thou interference fit and press it on.

Epoxy? How about Loctite? There are all types of Loctite for just this type of thing and they still allow disassembly.

Splined shaft measures 15.75 mm
Sleeve side measures 19 mm

And you are sure the shaft isn't pinned like this?

If only it were. Nope this has no roll pin.

algale wrote:And you are sure the shaft isn't pinned like this?

WoW, that is about as unorthodox as epoxy. I guess the bearing supports the pinned shaft but why do it like that when there are so many easier solutions. I think I would have to question the sanity of the engineer that came up with that.

Well, I tried heating the quill, I tired the bearing puller on both sides all to no avail. Bearing puller is just working against itself. This needs to be pulled apart, problem is their is nothing to pull on. I do have an old single bearing quill, it just needs a new bearing.

Anyone have Skip at MKC Tools modify a single bearing quill to a double bearing quill?

Is a double bearing quill really that big of a deal? Seems like I read on the forum that the second bearing was added in an answer to the total shop marketing that they had two bearings making their machine better.

Why not just buy a new 2 bearing quill from Shopsmith (p/n 518210) or look for one on a well=known internet auction site?