setscrews or not

[swampdonkey]

im just getting around to throwing the new bearings in the machine and was just wondering about setscrews. ive read on here that rock doctor does not use the outer bearing setscrews (and dont doubt him at all) but just wondering what will hold it from not slipping on the axle?? who uses and who has just junked em?

[Rock Doctor]

True that I don't use them, but I have been told that my brngs would last longer if I put them in. I have discussed this with a few knowledgable people and agree that they are there for a reason. However I don't have to like it, I still think they are a pain in the butt.
I guess that the proper thing to do is, use them but don't set them so tight that they dimple the axle. All you want them to do is stop the inner race from turning on the axle. If you dimple the axle, it makes brng removal more difficult.

[farmtoybuilder]

It's best to use them! Bearing turning on shaft is worst than small set screw marks. And if you do have to remove axle you just need to loosen and move collar outward and then use piece emery cloth or small file to clean any ruff marks off before removing.

[LarryW]

Here is a tip possibly if you have enough threads, put a piece of brass or some soft metal in the setscrew hole. It has to be a piece of rod small enough to fit in the setscrew hole and short enough to have the set screw threads grab enough to not strip the threads. Tighen it up without a dimple.

You can probably find some brass rods in most any hardware store. The local one I go to cares it.

[Bw6]

Setscrews

They actually make setscrews that are brass, nylon or silver tipped. I have used the brass and nylon they work well.

Tipped Set Screws in Nylon, Silver or Brass Metals

[swampdonkey]

thanks guys. maybe i will go ahead and throw them in. as for loctite, has anyone had problems with the setscrews backing out or is it just to make it a pain the @$$ when you go ahead and remove them??

[greggv2007]

Swampdonkey. If you use locktite, get blue [242]. It is usually not to bad to get loose. We use a lot of it at work. [HB 777]. If your in the neighborhood, stop by, I have a couple of projects on the go. 16-Fifth ave.[by family foods].GreggV.

[swampdonkey]

ahh i was by your place their the other day. a guy from work said he had seen a few machines in someones backyard. ya maybe ill have to come check them out sometime. as for the loctite, ya i think i will use the blue if anything. the red that was in before is just too hard to break free. the problem i had with the old ones were that the alan key was stripping the really seized ones out. had to drill a few out before.

[itsakeeper]

setscrews

there are other types of locking mechanisms - locking collar, which isn't really recommended for reversing applications - Squeezelock by sealmaster which would be more expensive but doesn't harm the shaft (dodge bearings also have a version of this one) - and Timken/Torrington just came out with a new locking device where you tighten setscrews but they in turn tighten a collar and don't directly touch the shaft - and finally an adapter sleeve which tightens all the way around the shaft evenly but takes up more room