Bearing seal installation

Wafangdian spherical roller bearing Bearing the author for you on June 21: bearing installation sealing device is nearly four years, past bearing are open, in order to ensure the bearing lubrication and dustproof, sealing device is located in the bearings on both ends of the shaft. Along with the development of the industry, food industry, in particular, the popularity of the modern office machinery and electrical appliances, equipment design is compact, the weight to prevent leaks, gas leakage, it appears the bearing itself bearing with seal. First is in deep groove bearing enormous quantity wide application is more, in recent years, all kinds of rolling bearing with different sealing ring of bearing, bearing seal bearing technology is one of the important direction of development, a quarter of the current our country bearing production has been shipped sealing ring, the next ten years there will be 2 - every year Three kinds of bearing structure, 2000 - 30 million sets of bearings developed into the bearing seal structure. Different structure bearing and use of different operating mode, require sealing ring structure and material is different, so the research and development workload is very big. Bearing installation sealing device development trend both at home and abroad of spiral wound gasket Japan several big bearing co. , LTD. ( Seiko, Oriental, nachi, etc. ) On behalf of the direction of the bearing installation sealing device. Their history in the development of seal bearing assembly technology, early research depth, sealing technology is relatively mature at present. Has been developed from single sealing lip to the sealing lip, from contact seal developed non-contact seal, etc. ; Look from the product type, ball bearing, roller bearing are. Bearing with the international development trend, also developed with a ring of deep groove ball bearings, water pump bearings, railway ( Tapered roller) Bearing cylindrical roller bearings, needle roller bearings and short yuan a few kinds of bearings, including deep groove ball bearing production is the largest, most widely used. According to the national technology recently sealed bearing to our country quality testing results, the sealed bearing structural design problem in our country is larger, the sealing effect is bad, fat leakage phenomenon more serious, users reflect the strong. Through analysis, the main reason is that our current bearing seal ring installation design structure is unreasonable, inner ring without seal groove, coupled with the manufacturing accuracy is not high reason. Bearing seal technology in China, therefore, the future development trend is: represented by deep groove ball bearings, to carry out the seal technology { HotTag} Test, looking for best seal structure and seal life, study on sealing material, looking for wear resistance, aging resistance, high temperature resistant and corrosion resistant material, in order to improve the contact seal life, development under the condition of high temperature or in bad mood work under the conditions of sealing ring technology foundation. The main research content and target according to the current our country the status quo of the poor quality of the sealed bearing, the main research content is: first is the study of experiments, and screened the deep groove ball bearing seal structure and the development of the corresponding bearing inner ring seal groove structure, the current deep groove ball bearing seal structure upgrading. To make this kind of bearing seal performance in 2005 to catch up with the international advanced level of similar products in the late 90 s; Secondly, it is combined with the development of car industry in China, the development is suitable for in 120 - The long-term work of the high temperature of 180 ℃ high temperature sealed bearing. The third is a delegate with railway vehicle bearings taper roller bearing series in sealed structure and new. Bearing comfortable and durable, )