Many of today's electric motor applications require the ability to vary and control the motor's speed, often achieved using Variable Frequency Drives (VFDs). However, VFDs can generate voltages and currents in the motor's shaft, resulting in arcing or discharge through the motor bearing to the housing hundreds of times per second. Over time, this action causes the bearings to pit, resulting in premature failure. Aaki's Motor Shaft Grounding Modules and accessories help prevent this failure by rerouting the damaging currents from the shaft to the motor housing through the device, bypassing the bearings and ensuring years of reliable service.<\/p>\r\n\r\n