Oil ring Vs Oil Bath
Oil ring Vs Oil Bath
(OP)
Hi
Just would like to know what would be the reason to go for oil ring lubricated bearing against oil bath lubricated.
Thanks
Just would like to know what would be the reason to go for oil ring lubricated bearing against oil bath lubricated.
Thanks





RE: Oil ring Vs Oil Bath
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RE: Oil ring Vs Oil Bath
Thanks electricpete for the infomation. Would you say rule of tumb any thing in exceed 3600rpm we would go for oil lubricated ring.
Is there a way to calculate this out or is it base on experience ?
Thanks again
RE: Oil ring Vs Oil Bath
This is not to say you cannot have a successful oil bath design running at 3000 RPM (I've designed several). However it becomes very critical to control the oil bath level. At 3600 RPM, I'd always recommend oil ring because of the reduced churning and heat generation.
However the caveat to the above is that it depends on the size of bearings you are using. Very small bearings will be fine with an oil bath even at high speeds.
The other issue with oil rings is that they can be tricky to design and execute properly. We have spent many hours testing and improving our designs. In particular the material of the oil ring and how it is guided are very important.
If you post details of the bearing size and application I can be a bit more specific.
RE: Oil ring Vs Oil Bath
I don't have bearing size, I am just trying to specify if oil ring is required over oil bath. Since speed is a factor. And as a rule of tumb rpm over 3600. How about power (kW) or shaft power which translate into bearing size ? What do you think, a typical power rating of a shaft to go for oil ring ?
Thanks again