SKF rolling bearings with internal rolling friction, sliding, in the case of high-speed rotation, such as poor lubrication, wear, heat, Burns, until all the damage. As oil of stick degrees low, dang bearing bear pressure larger Shi, on easy caused lubricant film break, caused dry friction and increased wear; lubricant stick spent large, light is will increases bearing of friction resistance, make oil temperature rise, heavy is will effect oil of mobile, difficult to formed oil film, instead on bearing harmful, therefore, SKF bearings of lubricant stick degrees select special important.
Use of ball and cylindrical roller bearings with oil, in the medium and low speed and room temperature conditions, generally use l-an22, l-an32, l-an46 viscosity grade of oil, high speed, inner diameter of SKF bearings can choose low viscosity lubricating oil, in turn, Selection of high viscosity lubricants. tapered roller bearings, spherical roller bearings and spherical roller thrust bearings, because at the same time subject to radial and axial loads, so under the same conditions of temperature, its ball and cylindrical roller bearings with a higher viscosity lubricants. At normal speed, cold conditions, SKF tapered roller bearings and spherical roller bearings, minimum oil viscosity l-an32 viscosity machine oil. Thrust spherical roller bearing with minimum oil viscosity l-an46 viscosity machine oil. Needle roller bearings, with large sliding friction, need more effective lubrication, oil viscosity grade with the same specifications with the speed of the ball compared to low should normally be appropriate.