Paper machinery equipment includes: Material preparation equipment, pulping equipment, pulp washing equipment, screening equipment, purification equipment, bleaching equipment, storage and storage equipment, paper processing equipment. This kind of mechanical equipment is mainly used in severe environment where corrosion problems are prominent and where short-term maintenance is not convenient. Therefore, the environment requires high corrosion resistance of the equipment, it is required that the bearing and lubrication system used have good corrosion resistance.