This comprehensive guide defines electrical erosion in bearings, explaining how VFD-induced currents cause pitting and fluting. It outlines practical inspection methods and details prevention strategies—such as shaft grounding and ceramic insulation—to protect industrial motors.

This guide details the feasibility of performing an insulated bearing replacement on standard motors. It outlines critical compatibility checks—including dimensions, clearance (C3/C4), and electrical testing—while providing best practices for installation to ensure protection against electrical discharge machining (EDM).

This complete guide explains the definition, materials (such as Aluminum Oxide), and structure of a bearing insulation layer. It details how these layers block harmful electrical currents to prevent EDM damage and extend motor life in industrial applications.

This technical guide analyzes how high-frequency SiC/GaN drives create destructive shaft voltages through high dV/dt and capacitive coupling, and why hybrid ceramic bearings are required over standard coatings to prevent failure.