SKF linear bearing installed correctly common questions

Before installation should clean the bearings. When installed, you should use the special tool to straight uniform pressure into the SKF bearing, don't use hammer percussion, specifically prohibit direct tapping on the linear bearing. When bearing race with a hole loose, should be to repair or replace the bearing seat holes, do not use on the surface of bearing with pitting or pad barely use copper method. Bearing removal should be used when appropriate to pull pull the bearing, do not use a chisel, hammer percussion bearing, etc. Rolling bearing two kinds of commonly used lubricants lubricating oil and grease. When the peripheral speed of the shaft is smaller than 4 - 5 m/s, or the car cannot be used lubricating oil, lubricated by grease. Grease lubrication sealing structure of the method is simple, the grease is not easy to drain, little affected by temperature, plus a grease can use a long time. Use grease should pay attention to two questions, one is according to the requirements of the car manual, choose suitable type of grease. Auto water pump bearing, for example, unfavorable choose base grease, due to its poor water resistance. 2 it is to join in the linear bearing grease want right amount, generally only 1/2 - bearing cavity filling Too much l / 3 advisable, not only useless, also can increase the running resistance of SKF bearing, warming heat. Paying special attention to the automobile wheel hub bearing, we must promote the 'empty hub lubrication', that is only in the layer of the tu yi on bearing can be just the right amount of grease, otherwise, not only waste and poor heat dissipation, still can make heat grease spillover, may affect the braking performance. Lubricating oil has the advantage of small frictional resistance, and heat dissipation, it is mainly used for the bearings of high-speed and working environment temperature is higher. Brand to choose according to the requirement of the car manual of lubricating oil, and car maintenance cycle change in time, released after the old oil is to add new oil after cleaning of institutions, oil should be added to the line, or refueling and flush ( Depending on the auto specific structure, requirements) , and not more. Without fixed lubrication will be a problem. Artificial maintenance, is impossible to achieve, the automatic lubrication system, can develop in order to achieve the best lubricating effect. Need grease, tools and effective lubrication technology, will help to significantly reduce downtime. Although you can install 'free' for all kinds of bearing seal, but the early failure of SKF bearing still has 36% is incorrect grease technology and improper use. Any linear bearing lubrication in inappropriate in normal life inevitably fail. Machinery and equipment bearing is usually the most difficult part of the work. Bearings are precision components, linear bearings and oil pollution, will not be able to run. SKF bearing in addition, all sealed maintenance-free with oils have, at least 14% of the pollution is all only in a small area of the premature failure of the bearing using bearing significant result. Bearing has excellent manufacturing and design capabilities, can provide all kinds of bad working conditions, sealing solutions. Clean is very important for rolling bearing. Bearing ring rotation surface and the surface roughness of the rolling element is usually a 1/10 microns, such a smooth surface is sensitive to damage caused by pollutants. Lubrication layer between the rotation surface usually is 0. 2 ~ 1 microns, is greater than the lubricant type size particles of impurities are influenced by the excessive rolling rolling element and partial pressure in the bearing steel, eventually lead to permanent material fatigue. In addition to this, the external environment of dust particle size can be up to 10 microns, also can cause damage of SKF bearing. Therefore, clean dust-free environment for storage and installation of linear bearing is very important.