A common problem of FAG bearing installation

A, the device looks and device applications require? B: yes. If there is scrap iron FAG bearing, burr, dust and other foreign matter to enter, will make the FAG bearing in the operation noise and vibration, and even damage raceway and rolling body. So, in front of the device FAG bearing, you must ensure that clean device looks and device. 2, rolling bearing device must be clean before? FAG bearing surface coated with anti-rust oil, you must use the clean gasoline or oil carefully cleaned and then coated with high quality high temperature or high speed smooth clean grease before device use. Cleanliness of FAG bearing life and the influence of the length of the vibration noise often large. But we need to special prompts you to is: all blockade FAG bearing not clean fuel. Three, how to choose smooth fat? Smooth operation and life of FAG bearings have a major impact, here briefly introduced to you choose smooth fat general principles. Smooth fat made from root oil, thickener and additive, the conflict and unity breeds with trademark fat smooth function vary widely, promised to reverse limit divergence, when the choice must pay attention to. Smooth function of fat first by root oil resolution, the warp and woof of ordinary low viscosity oil used in low temperature, high speed, high viscosity and used in high temperature, high load. Thickener also relationship with smooth function, smooth thickening agent water resistance resolution fat water resistance. Criterion, smooth fat means less inclusions, brand of differences and even the same smooth fat of thickening agent, will also bring bad influence for additive differences each other. Four, when smooth FAG bearing, oil paint, the more the better? Smooth FAG bearing, oil paint, the more the better, this is a concept often see mistakes. FAG bearings, FAG bearing indoor excessive grease will shape the excessive oil mixing, and then high temperature. FAG bearing the number of smooth filling agent to FAG bearing internal space filled with 1/2 ~ 1/3 advisable, when high speed should be cut to a third. Five, intended device and open it? Is not directly to hammer FAG bearing end face and the bearing surface, should be to press, sleeve or other device ( Tooling) To an average FAG bearing force, do not pass rolling body power plant. If the device smooth appearance coated with oil, will make the device more smoothly. Such as mutual interference is bigger, should put FAG bearings in the mineral oil in device as soon as possible after heating to 80 ~ 90 ℃, strict control the oil temperature does not exceed 100 ℃, to avoid the effect of tempering hardness decrease and recovery effect size. When open it hit hard, you are advised to use open east-west pulling out to careful labor the inner ring of hot oil, heat will make the FAG bearing inner ring expansion, and then make it easier is shattered. Six, FAG bearing radial clearance as small as possible? Not all FAG bearings are the smallest task requires clearance, you must based on the premise to choose appropriate clearance. National standard 4604 - In 93, the rolling bearing radial clearance is divided into five groups 2, 0, 3, 4, 5, clearance values in order from small to large, in order to regulate the clearance 0 group. Basic radial clearance combination for ordinary operation premise, practice temperature and the common interference joint; In the high temperature, high speed, low noise, low friction and other special premise task FAG bearing, appropriate chooses big radial clearance; Fine for spindle, spindle with FAG bearing, appropriate chooses the smaller radial clearance; On roller FAG bearing can insist on a few tasks clearance. Other, about separation type FAG bearing no clearance; Finally, FAG bearing installed task after the clearance, than the original clearance before the device is small, because want to accept the inevitable FAG bearing load, and FAG bearing joint and the load of elastic deformation.