Protect Against Stray Shaft Currents and Contamination in Harsh Environments

For severe-duty VFD-driven equipment, the Inpro/Seal MGS® design combines proven shaft grounding solutions with patented Inpro/Seal Bearing Isolator technology for complete bearing protection against harmful stray shaft currents, contamination ingress and lubrication loss.

The innovative Inpro/Seal design significantly increases long-term grounding effectiveness while offering superior contamination protection.

Smart MGS cutaway view with labels

To learn more, watch the Inpro/Seal Shaft Grounding video.

Smart MGS shaft grounding solution engineering drawing

Technical Data

  • Standard Material – Bearing Bronze
  • Axial Movement – 0.13 mm (0.005 in.)
  • Radial Movement – 0.38 mm (0.015 in.)
  • Temperature Range – -26°C (-15°F) to 204°C (400°F)
  • Speed – 10,000 sfpm
  • Standard Overall Length – 19.78 mm (0.775 in.), 22.86 mm (0.900 in.)
  • Shaft Size – 15.88 mm (0.625 in.) to 1220 mm (48.000 in.)

Consult an Inpro/Seal representative for operating conditions outside of limits shown.

Same-Day Shipments

Inpro/Seal is committed to making sure you have the right technology, right when you need it. We know that time is money. That’s why we offer same-day shipments on Shaft Grounding solutions, even new and custom designs. If you require same-day shipments on an Inpro/Seal MGS, contact your local Inpro/Seal representative.

Same day shipment paperwork

Additional Shaft Grounding Solutions

To increase reliability on VFD-driven equipment, check out our additional Shaft Grounding solutions:



A zero maintenance shaft grounding solution that outlasts and outperforms other designs.

Smart Ground Monitor

A condition monitoring system that provides instant feedback on shaft grounding performance.

Ready to Get Started?

Count on us to improve VFD-driven equipment reliability by diverting harmful shaft currents to ground, away from the bearings. Our Shaft Grounding solutions combine proven technology with innovative features to ensure superior bearing protection.

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