Constant-Level Oiler Installation and Maintenance Tips to ...
https://www.rsaworks.com/blog/posts/2019/august/constant-level-oiler-installation-and-maintenance-tips-to-extend-motor-bearing-service-life/
An external reservoir, usually made of glass, which is filled with oil at regular maintenance intervals; A lower housing, where oil from the reservoir is kept at a constant level, and; A feed line, which delivers the oil to a chamber inside the motor, up to a level sufficient to cover the lower portion of the motor bearing
DA: 56 PA: 58 MOZ Rank: 13