Bearing problems in the pulp boiler flue gas recirculation fan motors of a modern, integrated pulp and cartonboard mill were causing productivity problems. The motors were equipped with standard deep groove ball bearings that typically lasted only about six months due to damage from stray electrical currents.
SKF assessed the situation and replaced the mill’s standard bearings with SKF INSOCOAT bearings, which are specially designed to prevent the passage of electric current.
No SKF INSOCOAT bearings have failed. The mill achieved significant savings in maintenance and repair costs, reduced downtime and increased productivity.