Thread lock bad

[Mototech]

During the assembly process of my carve king, I have wondered about using thread lock on certain fasteners. I know from experience that thread lock is VERY bad for thermoplastics, like the polycarbonate v wheels. It will "attack" them and make them brittle.

Not sure of any ill effects it might have on other plastics used in the construction of the millright cnc's. But a warning in the assembly instructions about the use of thread lock around thermo plastics might not be a bad idea.

I also watched a youtube video about v wheel replacement by big man black t-shirt where he used a dremel to cut the damaged v wheels off the bearings. He definilty has dremel skills I don't, for I would not attempt that for fear of how easy it would be to damage the bearings by cutting too deep.

That got me thinking that maybe a damaged v wheel could be removed from the bearings by placing a few small drops of blue thread lock on the v wheels OD. Then let it sit over night to get nice and brittle, then tap with a hammer to hopefully get the v wheel to crack/ fall off of the bearings. I'd try it myself, but I don't have any damaged v wheels lying around.

[Derek the Admin]

Thanks for the feedback. I personally don't think thread locker would be needed where there is a split lock washer or nylock nut. A warning may be a good idea though.

I actually disagree with his method of removing the bearings. You can gently hold the v wheel in a vise, insert a small punch inside the inner race and holding it at an angle, and catch the inner race of the other bearing. Then a light tap on the punch with a hammer will knock the bearing right out.