Bearing tolerance matching: frame bearing with what bearing lathe center

Non separation bearing is made by the precision stamping processing circle of raceway and the needle roller and cage components of integral type bearing, affordable one-way axial load, the bearing to take up the space is little, is advantageous to the compact mechanical design, mostly with needle roller and cage components only, and the installation of the shell and the shaft surface used as raceway surface. Um, preventing and sealing lip wear and damage to each other, we can see clearly in the process of disassembly cross shaft journal presents the squeezed groove, journal and needle in seriously short of oil. Cage of low vibration and low noise plastic cage bearings and rolling contact with body, smooth operation, flexible, no metal cage noise produced when in contact with the roller, can significantly reduce the noise to the db. & #; Improper installation, improper installation is another important reason of bearing heating, the location of the store should avoid direct sunlight, good ventilation and clean environment. Low speed with a rolling bearing, high speed, with sliding bearing, the visual difference is high-speed bearing surface more smooth than low-speed bearing, outer ring and inner ring shaking high-speed bearing gap smaller, and low speed, on the other hand. The classification of the eccentric bearing for double eccentric double row tapered roller bearing; Cylindrical roller is a single layer of raceway small clearance or negative clearance of cylindrical roller bearing, mainly installed in the printer on both sides of the plate cylinder and the impression cylinder; Another kind of double raceway with negative clearance and eccentric cylindrical roller bearing unit, installed in the printer on both sides of the rubber roller. In addition, still can use hand bearing outer ring, rotation, if it does not have loose phenomenon, turn the smooth, the bearing is good; If the rotation of loosening or jamming, then bearing defects, at this time should be progress analysis and find the reason, in order to determine the bearing can continue to use. Adjust the shaft and bearing seat, boot operation, installation considerations before preparation of bearings due to bearing antirust processing and packaging, so do not open the packing before installation. Bearing repair, but with the improvement of speed, its shortcomings increasingly prominent: bearing life is short, the consumption of large, low finished product precision and roll neck wear, rolling roller to leap into big, etc. If you don't choose the NC system control mode, oil tank heating method which is widely used traditional heating method, the bottom of the tank from ~ mm set metal mesh, bearing on the Internet, large bearing to hoist hooks. In strict accordance with the proportion of mixed sauvy SDH material and coating to the bearing wear surface, solid tooling, treatment of iodine tungsten lamp heating and accelerate the curing speed. Lubricating oil filter measures strictly, keep working environment clean, in order to reduce or avoid abrasive wear and improve the structure of the roller bearing, to improve the smoothness of lubricating oil in the bearing.