SKF bearing installation and use common problems

A, installed on the surface and asked if the SKF bearing with iron filings, burr, dust and other foreign matter to enter, will make the SKF bearing noise and vibration during operation, and even damage raceway and rolling body. So, before the installation of SKF bearing, you must ensure that the installation surface and the environment clean. Second, SKF bearing must be cleaned before installed SKF bearing surface coated with anti-rust oil, you must clean with clean petrol or kerosene carefully, then coated with clean, high quality or high speed high temperature lubricating grease before installation. Cleanliness of SKF bearing life and the influence of vibration noise is very big. But we especially want to remind you is: fully enclosed SKF bearing not clean fuel. Three, the choice of the grease lubrication for work and life of SKF bearing has extremely important impact, here to you a brief introduction to the general principles of the grease choice. Grease made out of base oil, thickener and additive, different types and different type of same kind grease properties vary widely, allowing the rotation of the limit, when the choice is important to note. The performance of the grease is mainly composed of base oil, the basis of generally low viscosity oil is suitable for low temperature, high speed, high viscosity is suitable for high temperature, high load. Thickener and relationship with lubrication performance, thickening agent, water resistance to the water resistance of the grease. In principle, different brand of grease can't mix, and even the same thickening agent of grease, will also bring bad influence each other on the basis of different additives. Four added a SKF bearing lubrication, grease, oil paint, the more the better, this is a common mistake. SKF bearing and SKF bearing indoor excessive grease will cause excessive oil mixing, resulting in a high temperature. SKF bearing lubricant filling quantity to full of SKF bearing internal space 1/2 ~ 1/3 advisable, high speed should be reduced to one-third. Five, SKF bearing installation and removing installation do not directly hammer SKF bearing end face and the bearing surface, should be to press, sleeve or other installation tools for uniform SKF bearing force, not by rolling body power installation. If the installation surface coated with lubricating oil, will make the installation more smoothly. If the interference fit is larger, should put the SKF bearing in the mineral oil in installation as soon as possible after heating to 80 ~ 90 ℃, strictly control the oil temperature does not exceed 100 ℃, in order to prevent the effect of tempering hardness decrease and recovery effect size. When removing difficulties, it is recommended that you use disassembly tool to pull at the same time to careful labor the inner ring of hot oil, heat can make the SKF bearing inner ring expansion, making it easier to fall off. Six, the choice of SKF bearing radial clearance is not all the SKF bearing require minimum clearance to work, you must choose appropriate clearance according to conditions. Gb 4604-93, the scroll SKF bearing radial clearance is divided into five groups - 2, 0, 3, 4, 5, clearance value in sequence from small to large, including standard clearance for 0 group. Basic radial clearance group applicable to the general operation conditions, the conventional temperature and the range of the commonly used; In high temperature, high speed, low noise, low friction work under special conditions such as SKF bearing, appropriate chooses big radial clearance; Of precision spindle, spindle with SKF bearing, appropriate chooses the smaller radial clearance; For roller SKF bearing clearance can keep a small amount of work. In addition, for the separation of SKF bearing no clearance; Finally, imported SKF bearing installed after work clearance, than the original clearance before the installation is small, because the SKF bearing rotation, to absorb a certain amount of load and SKF bearing fit and load produced by the elastic deformation. This article editor: bearing network more imported bearing on knowledge please bearing http://zc. zcwz。 com