DP&A Sales & Shaft Shaft Grounding Systems, Inc. have been partners for over 30 years. Together, we have developed a reputation for being consultative rather than simply pushing product. We specialize in end user point of contact to identify application specific motor shaft grounding systems that eliminate capacitive discharge leading to electrically induced motor bearing failure. Who is an end user? Anyone directly benefiting from a properly working VFD motor. We thrive on working with end users or preventative maintenance personnel as it is those parties who have the most to gain from successful application of motor shaft grounding.