Lubrication Selection for Brush Bearings

http://www.reliabilityweb.com/fa/lubrication.htm

http://www.skf.com/portal/skf/home/aptitudexchange?contentId=0.237932.237933.237935.237973

Contact a lubrication engineer in any oil company and they will recommend suitable grade oils that that can be used, not only for bearing load but all other parameters that may affect bearing lubrication, e.g. temperature, environment, etc.

A tried and tested method that usually passes with flying colours.

Of course you can ring any number of oil companies and this will give you a broader range of selection. However do not switch brands of oil without cleaning the lubrication system before changing brands. This needs to be done in case there is an adverse reaction between the additives of the brands...........the chances of this happening is only small, but, better to safe than sorry.

What is a "bush" bearing? Or ""Brush Bearing" as the case might be?

The word "bush" is a somewhat archaic contraction of the word "bushing" which generally refers to any plain brearing or even a static cylindrical spacer between two different diameters. The lubrication of this type of common machine component can vary greatly depending on materials, loads, speeds of relative motion, temperature, and a number of 2nd order conditions. A comprehensive generalized answer short enough to be of practical size for this forum would be an impresive effort.

On the other hand was the word "Brush" in the title a typographic error or a purposeful entry? The nearest meaning of the word "brush" refers to the components of electric motors and similar devices used to conduct electric current between two surfaces moving relative to each other. The rubbing contact in this type of device introduces some specialized issues for "lubrication" at the interface. Is that the subject of this topic?

Ed Weldon