Growing awareness of potential bearing damage

NINE STAR even performed the Vertical Motor Solution for some motor manufacturers that sent him complete new motors or motor components prior to shipment to end-users.

We have seen an increase in specs that include shaft current mitigation for VFD-driven motors. Sometimes, the OEM or the general contractor might not catch it in the bid, and it has to be fixed later, to equip the motors with what was specified — better late than never.

Some failed motors has reconditioned were originally marketed as “inverter-rated,” “inverter-duty” or “inverter-ready” models. Most of these motors have extra insulation to protect the windings but nothing to protect the bearings.

Linqing Nine Star Bearing Science & Technology Co., Ltd            

(Insulated bearing, Hybrid ceramic bearing and  Brass cage DGBB)

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