Routine visual inspections for common problems can help identify them before they cause serious damage, if any of the following occur, you should contact a professional to have your motor inspected: The life of a carbon brush is dependent on several psychical factors including, the frequency of use, alignment of brush and pressure settings, in addition to environmental factors including temperature, contamination and humidity.
How Can I Extend The Life Of My Carbon Brushes? Once the carbon brushes are completely worn the motor will begin to underperform before failing – running a motor with worn carbon brushes can result in extensive damage to the motor. Often, before a carbon brush starts to wear, you will experience sparking on the commutator – you can read a case study about this issue and its causes here. What Happens When Carbo n Brushes Wear?Ĭarbon is a soft metal and brushes are designed to wear out over time, the reason a soft metal is used is to reduce the amount of damage caused to the commutator through friction. Our inhouse equipment and expert team allows us to diagnose these common issues and carry out repairs or replacements with a quick turnaround time.
Carbon Brushes In DC Motors – Common Causes Of Fault and How To Prevent ThemĭC (direct current) motor rewinds and repairs have been one of our specialist services for many years and in our experience, carbon brush wear is one of the most common causes of DC motor failure, alongside carbon dust and commutator surface wear caused by bad contact with the brushes.Ĭarbon brushes are found in many DC motors and it is essential they are properly maintained and replaced when necessary to ensure optimal performance of motors and reduce the risk of downtime.