Useful Information

SGS™ Slideshow Gallery

Capacitive and Circulating Currents in Electric Motors

Maintenance Free Shaft Grounding Devices- A Closer look at a Questionable Claim

Let's Talk Dirt-Operating Environment is Key

Internally vs. Externally Installed Shaft Grounding Systems

Incidence of Electrical Bearing Damage Survey

Thinking Beyond Your Motor's Warranty Period:  Will your shaft grounding system last for the service life of the motor and beyond?

Brand Comparison Chart

Shaft Grounding Systems, Inc's., Testing Lab Visit- Complete with comparison test of shaft voltages between SGS and a competitor

DP&A Sales working with end users to ensure the most cost effective, long-term fix for electrically induced bearing failure is acheived.

Reliability, Performance & Maintainability- Our RPM level of quality

Introduction to Bearing Failure 101

Frequently Asked Questions- Updated for 2019

Baldor-Reliance 501 Mod Catalog-Understanding your Shaft Grounding Choices

Understanding Circulating Currents

Understanding Electrical Discharge Machining (EDM)

Challenges of Field Testing for Shaft Voltages

Understanding the Psychology and Market Forces that Prevent Root Cause Analysis of Electrical Bearing Damage

Engineering Specs

Bearing Damage Examples

Technical Paper (.pdf)

Specific Cases

Semiconductor Plants

Utilities

Poultry Farm

OEM Motor Manufacturer

Empowering End Users to Specify Correct Shaft Grounding Systems

Pulp & Paper (.pdf)

Universities

COMING SOON:

Marine Industry

Locomotives/Light rail

Hospitals

Aeronautical



Interesting Resources

Wikipedia Shaft Voltage Article

"Controlling Shaft Voltages" article written by James S. Bothwell

Long article on electrical bearing damage including a summary of possible solutions. Contains good concepts on electrical bearing damage. Includes a myriad of possible solutions which shows just how confusing shaft grounding solutions can get.

"An Overview of Shaft Voltages and Bearing Currents in Rotating Machines"

"Induction Motor Bearing Fault Detection Using a Sensorless Approach"