Non-standard bearing gradually become the foundation of the key parts and components

Non-standard bearing gradually become a key source of basic components: bearing | last updated: - 2020 08 - 26 non-standard bearing has become the foundation of the key parts of non-standard bearing bearing is important in the equipment manufacturing industry, the basis of the key parts and components, directly decides the major equipment and host performance, quality and reliability of the product, known as the 'heart' part of the equipment manufacturing. After years of development, Chinese bearing industry has formed a large scale, the national bearing industry 2010 annual output value is about 130 billion yuan, ranked third in the world. Despite the scale of the development of Chinese bearing industry has been very big, but most are concentrated in the low-end, and in the field of high-end bearing manufacturing, our country there are still a considerable gap compared with developed countries. The domestic bearing industry association secretary-general Wang Quanqing has also made it clear that the domestic high-end bearing development speed still can't keep up with the development of the host. For example, our country has mastered the high-speed emu technology with independent intellectual property rights, but with the bearing is still dependent on imports. At present, most of the domestic bearing enterprises producing high-speed bearing can only meet 150 - 180 kilometers of the train, and the European and American countries high-speed bearing can satisfy the speed of 350 - 400 km the demand of the train, so, the current domestic high above 200 km/h emu matching iron bearing import basic rely on a high price. Based on the fact that our country high-end bearing behind 'planning' clear, will give full play to the guiding role of industrial policy, improve industry admittance threshold, containing low level repeated construction; Give 'sanki' industry, including bearing industry, fiscal and taxation support policy, the implementation of the key parts and raw materials import duty-free policy; Study and formulate encourage users to use 'sanki' policy of new products and new technology. Non-standard bearing inner failure treatment 1, non-standard bearing damage. Check ball of ball bearing or bearing bush of ball bearing is damaged. If there is any damage should be repaired or replaced. 2, lubricating oil with impurity, too dirty, oil ring stuck or brand is wrong. Should check the reason stuck in oil, repair, when oil viscosity is too large, should change the lubricating oil. 3, non-standard bearing indoor short of oil. Should add grease with two-thirds of the oil level of oil chamber or add lubricant to the standard line. 4, non-standard bearing grease in the jam is too much, the eccentric bearing lubricating oil temperature too low or too high. Should remove excessive grease in the rolling bearing, or the oil indoor full of grease to 2/3. 5, bearing and shaft, bearing and end cover with too loose or too tight, too tight will make the whole deformation eccentric bearing, too loose prone to 'run'. Bearings and shaft too loose when the journal can be coated metallic paint, the tight to processing; Bearing a loose end cover set close together with end cover, the tight to processing. 6, two of the motor end cover or didn't assembled bearing cover, it is usually not parallel, overall eccentric bearing is not in the correct position. The two end cover or stop bearing cover mouth flat, tighten the bolt. 7, belt too tight, too loose or bad coupling assembly. Adjust the belt elasticity; JiaoZheng coupling. 8 and maintenance in the wrong bearing type. To replace the right type of bearing as soon as possible. ”