High quality and reliability are essential for pump OEMs looking to build long-term customer trust, repeat business, and positive word-of-mouth. As variable frequency drives become standard in pump systems, protecting electric motor bearings from VFD-induced damage is no longer optional. Helwig Carbon partners with pump OEMs to deliver dependable shaft grounding solutions that extend motor life, reduce failures, and strengthen the overall value of the pump system.

Benefits of Helwig’s BPK™ Shaft Grounding

  • Increases system reliability while lowering total pump life cycle cost
  • Delivers longer service life and more consistent performance than carbon fiber rings
  • Provides 10+ years of maintenance-free protection, even in contaminated environments
  • One size fits many shaft diameters, simplifying ordering and reducing inventory
  • Multiple installation options including EZ MultiFit Bracket, drill and tap, and internal or external mounting
  • Stock products and custom-engineered solutions available for OEM integration

Lower Life Cycle Cost for Your Customers

Variable frequency drives improve efficiency and control in pump motors, but they also introduce high-frequency shaft currents that can lead to fluting, arcing, burnt grease, and premature bearing failure. These failures increase warranty risk, service calls, and downtime for end users.

Helwig’s BPK™ Shaft Grounding safely diverts harmful currents away from motor bearings, preventing premature failure caused by electrical discharge and extending bearing and motor life. The result is lower total cost of ownership for customers and fewer reliability concerns for OEMs over the life of the pump.

BPKs Last Longer and Perform Better Than Carbon Fiber Rings

Helwig BPKs maintain shaft voltages below 1V peak-to-peak for 10+ years, even in contaminated environments. Each BPK uses a proprietary silver graphite brush and a positive force spring to ensure consistent, reliable contact throughout its service life.

In comparison, carbon fiber rings typically provide effective protection for only 6 to 12 months before performance declines as bristles wear and resistance increases. Carbon fiber rings also require application of colloidal silver every 6 to 12 months, adding ongoing maintenance and cost. Lab testing and field data confirm the superior longevity and performance of Helwig BPKs.

Simplified Shaft Grounding Inventory and Standardization

Helwig’s one-size-fits-many design allows pump OEMs to standardize shaft grounding across multiple motor sizes and pump models. This approach reduces part numbers, simplifies procurement, and minimizes inventory complexity while ensuring consistent protection across product lines.

OEM-Focused Engineering Support and Fast Turnaround

Helwig maintains ready-to-ship BPK™ Shaft Grounding kits and offers rapid prototyping for custom OEM applications. Our experienced engineering team works directly with pump manufacturers to integrate shaft grounding seamlessly into new designs or existing products, optimizing performance while controlling cost and keeping development timelines on track.

Protect Your Pumps with Proven Shaft Grounding

With Helwig BPKs installed, shaft grounding becomes one less concern for your customers and one less risk for your brand. Pump OEMs rely on Helwig’s BPK™ Shaft Grounding for outstanding durability, consistent performance, and long-term reliability.

Contact Helwig Carbon at (414) 354-2411, email [email protected], or visit www.helwigcarbon.com/shaft-grounding to learn more.