SKF: All steel bearings give paper mills a 4900% return on investment

The INSOCOAT bearing produced by SKF is a standard all-steel bearing with a plasma coating on the outer surface of its inner or outer ring, which protects the bearing from the conductivity of water and moisture.

INSOCOAT bearings are suitable for large and medium-sized motors and have many advantages over other methods used to prevent shaft current destruction. Since INSOCOAT bearings have the same form factor as standard bearings, no special installation procedures or expensive equipment changes are required.

INSOCOAT bearing unique sealant can make the coating can still work effectively in the wet environment. The environmentally friendly coating provides a uniform insulation layer that is hardly affected by any high temperatures and chemicals. In addition, the INSOCOAT coating prevents lubricant deterioration due to current discharge.

A modern pulp and paperboard integrated production plant, due to bearing problems in its pulp digester exhaust gas circulating fan motor, has caused its production efficiency to deteriorate. The 400 kw AC motor with frequency converter operates at a speed of only 950 rpm and the operating temperature exceeds 100 degrees Celsius. The motor is equipped with standard bearings, and the average life is only six months under the action of the shaft current.

In order to increase reliability and reduce maintenance and repair costs, the manufacturer finally installed SKF's INSOCOAT bearings in the fans. Since the installation of INSOCOAT bearings, there have been no failures. The factory greatly reduced the cost of repairs and maintenance, and at the same time reduced downtime and increased production efficiency. The result was a significant improvement in the production line.

Return on Investment (Annual)
Previously cost bearing replacement cost: 1 000 EUR Repair/maintenance cost: 6 000 EUR Downtime cost: 43,000 EUR Total cost: 50 000 EUR Current cost INSOCOAT Bearing: 300 EUR Repair/maintenance cost: 700 EUR Total cost: 1 000 Euro Return on investment: 4 900%