Imported bearings should not use too much grease

Imported bearings should not use too much grease is well known, in the role of imported bearings, grease can say any imported bearing maintenance cannot leave the grease, the grease more many more good? Of course, the answer is no, here are imported bearing, for example, to explain. We use too much grease in fact there are a lot of harm. Grease has good adhesion, abrasion resistance, temperature tolerance, rust and lubricity, and can improve the high temperature oxidation resistance, delay aging, can dissolve carbon deposition, prevent poly metal abrasive dust and oil pollution, the improved mechanical wear, pressure and corrosion resistance. The more grease filling amount, the greater the friction torque. The same filling amount, the sealed bearing friction torque is greater than the open bearing. The grease filling amounts to 60% of bearing internal space volume, friction torque no longer increases obviously. This is due to open in the bearing grease has been most extrusion, but also has lost in the sealed bearing grease. With the increment of grease filling, bearing temperature rise straight line, the same filling amount, sealed bearing temperature rise is higher than the open bearings. It is generally believed that sealed rolling bearing grease filling amount, shall not be more than about 50% of the internal space. Ball bearing, 20% to 30% in the most appropriate.