Greasing Electric Motor Bearings

Over the past years, we have been researching the problem of grease and electric motor bearings. The major problems are the type of grease, the proper application of the grease, and the frequency of application. This is the result of our own research involving grease manufacturers, bearing manufacturers, motor manufacturers, our industry's technical association, and our own experience in our facility.

Probably the least understood part of the problem is the grease itself. Without going into great detail, grease is approximately ninety percent oil and ten percent thickener. The oil does the lubricating; the thickener keeps the oil in place.