The outer Spherical Ball Bearing is what we usually call the outer Spherical Bearing. The reason why it is called ball bearing is that it belongs to Deep Groove Ball Bearing, and the rolling element in it is steel ball.
Deep groove ball bearing outer spherical ball bearing is convenient to use the main characteristics of simple for loading and unloading, self-aligning ball bearings, standard tolerances for internal and external diameter reduction, adding tolerances to ensure the shaft with the light; each set of ball bearings are not alone to use and he must match to bearing inside the whole machine, the outer spherical bearing are of various shapes so the overall fit for various structural position after use. The ball bearing of the outer sphere can be divided into three categories according to the way of matching with the axis.
Double layer seal
Spherical Bearing Spherical Bearing,Small Spherical Bearing,Mini Spherical Bearing,Spherical Roller Thrust Bearing LUOYANG AUTO BEARING CO.,LTD , http://www.lyautobearing.com
Against the background of the financial crisis, the demand for high-end and middle-end CNC machine tools is stable, and the growth rate is significantly higher than that of the industry as a whole.
The machine tool industry as the "parent machine" of the equipment manufacturing industry is the carrier of advanced manufacturing technology and the basic production method of the equipment manufacturing industry. The rapid downstream equipment manufacturing industry has brought about a huge market demand for the machine tool industry; the development of China's advanced equipment manufacturing industry will eventually Still rely on the support of the civilian machine tool industry, national machine tool industry will also fully enjoy this huge demand cake.
Many companies at home and abroad have high hopes for the Chinese market. Not only the world airport giants of Germany, Japan, and the United States have gone to cities in China, but also Korean and Chinese Taiwanese products have poured into the market at a low price. Competition in the domestic market has become increasingly fierce.
After years of development, the gap between China's machine tool industry and foreign countries is getting smaller and smaller, but we still rely heavily on imports for key functional components such as CNC systems. At this stage, with the advantage of price, and good performance, the domestic CNC system has a greater chance in the field of machine tool CNC remanufacturing, and will occupy most of the market.
Investment in the machine tool industry should focus on industrial integration and structural adjustment, product upgrades and two ideas, to find corresponding platform companies with restructuring and integration opportunities, such as Shenyang Machine Tool, Qinchuan Development and Tianma shares; and CNC products, especially high-end CNC Products with relatively large products, advanced technologies or potential for improvement, such as Kunming Machine Tool, Tianma Co., Ltd., Huadong CNC and Qinghai Huading, and Fain CNC are the leading players in the field of special machine tools and have relatively stable performance. 
Outer spherical ball bearing with top wire
Its code is: UC200 series (light series), UC300 series (heavy duty Series), and deformation products UB (SB) 200 series. If the environmental load is small, UC200 series should be selected generally, otherwise UC300 series should be selected. Generally, there are two top threads on the outer spherical ball bearing, the angle between them is 120 degrees. The characteristic is that when the shaft fits with the shaft, the top wire is applied to the shaft to play a fixed role, but the environmental requirements for its matching must have a small vibration range. This kind of spherical ball bearing is widely used in textile machinery, ceramic machinery and other manufacturing industries.
Spherical spherical ball bearing with taper
Its name is: UK200 series, UK300 series. The inner diameter of the outer spherical ball bearing is the taper hole with a ratio of 1:12. When used, it must be combined with the tight sleeve. The characteristics of this kind of outer spherical bearing are: it can bear more load than the outer ball bearing with top wire. Because the diameter matched with the locking set the same model than with the top wire outer spherical ball bearing small, such as with the top wire outer spherical ball bearing UC209 inner diameter is 45mm, and is matched with the diameter of the shaft is 45mm, and if if change into a tapered outer spherical ball bearing, can only choose 45mm diameter sleeve, and 45mm adapter sleeve with taper outer spherical ball bearing is UK210 (of course, if the load is higher then you can choose the UK310). As a result, the load on UK210 is much larger than that of UC209.
Spherical spherical ball bearing with eccentric sleeve
Its name is: UEL200 series, UEL300 series, SA200 series. The main characteristic of this kind of spherical ball bearing is that there is a certain eccentricity on the upper end of the bearing, and the eccentric sleeve with the same eccentricity is cooperated with it. These bearings can also be said to be a special bearing, because it is mainly in agricultural machinery (harvester, straw machine, threshing machine etc.) on the use of this kind of outer spherical ball bearing is mainly used to beat hard structure, combined with the eccentric structure can effectively reduce the dynamic jump violently.
The outer spherical ball bearings than other ordinary bearings is a double seal, because the outer spherical ball bearing the use of environmental conditions are harsh, especially agricultural bearing even more, and the double sealing to ensure the dust is not easy to enter the channel within the last two years, some companies developed the outer spherical bearing three lip seal the more greatly enhance dustproof ability, prolonging the service life of the bearing.
The worst of the machine tool industry has gone to recover the horn is bright
In the first half of 2012, under the support of a series of investment plans and industrial policies of the country, China's machine tool industry basically bottomed out. It is expected that the government may introduce more measures to stimulate economic growth in the second half of the year, and the overall recovery of the downstream equipment manufacturing industry and industrial upgrading will be achieved. Will inject new growth momentum into China's machine tool industry, and the overall recovery of the industry will soon begin!