Standard drip-feed oilers lubricate single friction points in machinery on stationary industrial equipment, such as gears or bearings. Also called gravity-feed oilers, they permanently install above the highest point on the equipment to allow gravity to power the oiler.

These drip-feed oilers lubricate a single chain or gear as it passes through an attached brush. The oiler is controlled manually or by a solenoid wired to the on/off switch of the equipment so that the oiler only operates when equipment is running. The rate of lubrication on the brush adjusts using a dial on the brush valve.