by Melanie Hupfer | Jan 16, 2026 | BPK, Silver Graphite
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... 
by Melanie Hupfer | Oct 8, 2025 | BPK, Silver Graphite
What Is a Motor Shaft Grounding System? A motor shaft grounding system—commonly referred to in the industry as a shaft grounding brush or shaft grounding ring (shaft earthing brush or shaft earthing ring outside of the U.S.)—is a crucial motor protection component... 
by Melanie Hupfer | Jun 17, 2025 | BPK, BPK-Probe, Brush Holders, Brushes, Carbon Brush, Carbon Graphite Components, Silver Graphite
We’re excited to share our new company video—a fast-paced snapshot of what makes Helwig Carbon an industry leader. In just one minute, you’ll get a glimpse inside our advanced manufacturing facility in Milwaukee. With 750 stock parts ready to ship and a team of... 
by Melanie Hupfer | Dec 9, 2024 | BPK, Silver Graphite
Don’t Settle for Poorly Manufactured Imitations or Carbon Fiber Rings End the frustration of bearing failure caused by VFD-induced currents with Helwig Carbon Products’ industry-leading BPK™ Shaft Grounding Solution (sometimes known as shaft earthing outside of the... 
by Melanie Hupfer | Oct 8, 2024 | BPK, Silver Graphite, Wind Energy
A common challenge in wind turbine generator maintenance is bearing failure due to static discharges and lightning strikes. White-etching cracks (WEC) and other kinds of damage caused by electrical discharge through the bearings lead to costly downtime, expensive... 
by Liz Cottrell | Jan 20, 2023 | BPK, Silver Graphite
Recognizing the need for shaft grounding for your electric motor is the first step towards solving a shaft voltage issue. Even if a protection kit is installed, it does not guarantee that your motor is protected. Many factors can influence the effectiveness of a shaft...