Controlling Pressure While Greasing Bearings

Noria Corporation
Tags: bearing lubrication, electric motor lubrication, grease guns

These seven quick pointers for managing pressure when regreasing bearings are excepts from Noria's Machinery Lubrication Level I training course.

Shut-off Grease Fitting
Prevents over-pressurization during greasing. Shuts off flow at 50-110 psi. When pressure relieves grease flow can resume.
Relief-type Vent Plugs
These fittings are installed in the vent (purge) port. They are pressure-relief valves with cracking pressure of 1-5 psi.