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Shaft Grounding Solutions

Current Diverter Ring® & Motor Grounding Seal®

Inpro/Seal Current Diverter Ring (CDR®) technology protects your motor bearings and coupled equipment from damaging electrical currents so you can maximize equipment reliability, reduce costly maintenance and minimize unscheduled downtime.

Variable Frequency Drives can create stray currents that run along the shaft and discharge through the motor bearings and bearings of coupled equipment — causing fusion craters, pitting, frosting and fluting. The Smart CDR grounds shaft currents that cause bearing damage and premature motor failure.

On severe-duty applications, The Smart Motor Gounding Seal (MGS®) provides complete bearing protection against shaft currents, contamination ingress and lubrication loss, 

For the next generation of shaft grounding, Smart Shaft Grounding, only from Inpro/Seal, combines proven technology with innovative new features, providing solutions to problems that limit other technologies.

Divert it. Ground it. Protect it.

Features & Benefits

Proprietary design features protect against bearing damage. Here’s how...

  • The CDR® uses proprietary conductive carbon filaments to safely divert stray shaft currents to the ground - away from the bearings.
  • In addition to shaft grounding, the MGS® utilizes patented bearing isolator technology to keep contamination from entering the bearing housing – protecting your equipment.

Features and Benefits:

  • Custom engineered for your specific application and operating environment
  • Press-in, clip-on or flange-mounted installation
  • Split designs for easy installation
  • Same day shipments available on most products, including new designs


The Inpro/Seal Current Diverter Ring and Motor Grounding Seal are custom engineered to provide permanent bearing protection on electric motors and drives.