Scarborough, ON — Oct. 3, 2002 — SKF Canada reports that its parent firm will be the main supplier of bearings to Metso Paper, which is supplying Stora Enso’s Langerbrugge Mill in Belgium with the world’s largest papermaking machine.
The machine is due to start production in June 2003 and will make about 400,000 tons of newsprint per year.
The number of bearings in a large paper machine such as this total as many as 3,000 pieces, but with lock nuts, washers, bearing housings, etc, the number of SKF items in the machine is about 10,000 pieces. The largest bearing, a spherical roller bearing, has an outer diameter of 1.3 m and weighs 1,200 kg.
Metso Paper is continuously developing more efficient and faster machines, with production speeds currently exceeding 2,000 m/min. To meet these challenging demands, SKF has been implementing high precision internal geometry techniques for the large paper machine bearings. In the dryer cylinders, SKF’s CARB bearings are being used.