Power | Northeastern Power Company
This municipal utility lost an l.D. Fan due to bearing failure during the month of January, one of the most demanding periods as far as power generation goes. After a Robinson inspection, it was determined that the thrust ring had spun in the shaft groove, destroying both the ring and the shaft groove.
Robinson Fans Service, with specialized field machining equipment, arrived on the job site and machined the shaft groove to accept a specially designed thrust ring (which was also designed by our on-site technician). After modification and installation, the unit was reassembled and put back into service.
The generation plant was down only a mini mum of time and repaired at a fraction of the cost compared to the alternative of removing the entire fan wheel assembly and sending out for repairs.