Q & A INDEX

SECTION 3 - BRUSH THEORY AND CHARACTERISTICS

Question 3:8 What Cause A Brush to Wear Out?

There are many machine and environmental conditions which contribute to brush wear and these are considered in other sections. 

For the purpose of this section we look at the fundamental theory of brush wear assuming all machine and other conditions are normal.

There are two basic factors in carbon brush wear: 

 

1 Mechanical Wear

 2 Electrical Wear

While some people assume softness of the brush is the reason for wear and the fitting of a harder brush will give longer life this can often be far from the truth.

The mechanical and electrical wear do not increase in the same way. The ideal combination of these is often difficult to achieve.

 

Question 3:9 What Is Mechanical Wear?

 

Q & A INDEX

The information has been drawn from experience of Morganite Taiwan Limited Application Specialists combined with a wide range of published information from major carbon supplier and motor manufacture. However, the material can not be downloaded, copied or used without written permission.

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