How to extend the life of your motor bearings
What happened
ABB published technical guidance explaining how variable‑speed drives can induce shaft currents that damage bearings and shorten motor life. The article highlights practical mitigations—shaft‑grounding devices and insulated bearings—and notes installation and sizing matter for larger motors. Watch supplier offers to see whether these mitigations are delivered as standard or sold as optional add‑ons
Why the category manager should care
Treat shaft‑grounding and insulated bearings as spec items, not optional extras, because leaving them optional leaves buyers exposed to repeat corrective spend
Key facts
- Technical guidance on VSD induced shaft currents and mitigation
- Recommended fitted shaft grounding devices or insulated bearings
- Installation and sizing guidance matters for larger motors