SAG 180
Titanium
- Joined
- Sep 17, 2007
- Location
- Cairns, Qld, Australia
So I'm planning on making a vertical hollow spindle with two 7318 angular contact bearings with a 90mm bore and I'm looking for lubrication ideas. It's going to be a sand mixing machine that dumps the sand through a vertical hole through the middle of a tube supported on the two angular contact bearings. Ideally there would be a rotating seal below the two bearings to keep a supply of oil for the bearings. This will turn about 60-100 R.P.M. with the two bearings under an oil bath for lubrication. There will be lots of abrasive dust and moisture and occasionally salt air.
So my questions are: will ball bearings be ok running completely immersed in oil at low speeds?. What rotating seal technology exists to keep the oil in and the dirt out?. I was thinking along the lines of stellite face seals that Caterpillar makes, for the bottom seal rather than a rubber shaft seal that will eventually leak and need replacing.
So my questions are: will ball bearings be ok running completely immersed in oil at low speeds?. What rotating seal technology exists to keep the oil in and the dirt out?. I was thinking along the lines of stellite face seals that Caterpillar makes, for the bottom seal rather than a rubber shaft seal that will eventually leak and need replacing.