SAB-250 grinder wheel wobble

[Chris]

Hi,

I recently bought an old Tormek SAB-250 that does not seem to be in great shape. The grinding stone has a noticeable wobble, which I have  tried to show in the attached YouTube video. My guess is that the nylon bushings are worn out or that the axle itself.

Has anyone experienced the same issue and managed to fix it by replacing the bushings and axle?

[Ken S]

Welcome to the forum, Chris. I am not familiar with a Tormek SAB-250 model. I suggest that you email support (support@tormek.se) The head of support is a veteran employee who may well have been part of the crew which built your Tormek. Be sure to include the video with your email.

Please share your reply on the forum.

Ken

[RickKrung]

Does the wheel actually wobble on the shaft, or is the wobble due to the shape of the wheel itself?  If the wheel is loose on the shaft and wobbles, it may be that the arbor hole has worn and/or is no longer round.  If it does not wobble on the shaft, and the sides of the wheel wobble, as shown in your video, that would appear to be the result of the shape of the wheel. 

I've read a few times here in the forum the opinion that side wobble, even as much as shown in your video does not really adversely affect sharpening, as long as the outside diameter (OD) of the wheel can be trued, presumably using the Tormek Truing Tool.  Do you have one of those and have you tried truing OD, which is the only surface that matters on that type of stone. 

[Ken S]

The latest version of the TT-50 truingtool is definitely worth having.

Ken

[Herman Trivilino]

Does the honing wheel wobble in sync with the grindstone? If so, it's likely a bent main shaft.