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"Bearing Roller Bearings"
BlogSKF China officially launched the Global Technology Center |
11-07 |
SKF China officially launched the Global Technology Center Swedish SKF Group for faster and more efficient way for local and global slewing ring bearing customers develop new products and solutions in China 2010.05.11 officially launched at the SKF Global Technical Centre . We follow SKF SKF bearings distributor in China to understand China's global technology center.
SKF China Global Technology ball bearing manufacturer Centre is currently mainly for SKF Sealing Solutions business automobile and implement the first phase of service , technology center will be an integral part of the global network to ensure that SKF to faster and more efficient way for local and global customers develop new products and solutions. SKF Global Technical Centre China will first focus on the test as well as the design, process and vendor confirmation provide advanced technical knowledge and other fields. In addition, the center will also analyze SKF bearings for customers and has established a metallurgical and chemical industries for well-equipped laboratories.
SKF Nautilus bearing not only allow single bearing spindle configurations as possible |
10-14 |
SKF bearings distributor in China editing, along with the development of wind turbines, wind power generators become the development trend of the market, and one of its main components bearing various suppliers also become the target relative to catch up. SKF Group in order to meet this goal developed for wind turbine SKF Nautilus bearing tapered roller bearings.SKF specially developed for high-power wind turbines large contact angle of tapered roller bearings Nautilus bearings. SKF Nautilus china bearing factory for the back to back in the form of tapered roller bearings, with the larger the contact angle (45 °). SKF Nautilus bearing not only allow single bearing spindle configurations as possible, while greatly reducing the traditional design of the drive chain length so compact wind turbine designs. Of course, this design also ensures the bearing or drive all the features.SKF Nautilus bearing a remarkable feature is its use of a segmented plastic cage, segmented cage design, as each individual component is very small, and no intermediate links, even in the loaded state of the bearing will not affect the deformation of the shape of the cage and the rolling element guide. Also, because each component only four rolling, therefore, the holder will be generated by the friction is reduced to a minimum range. SKF Nautilus bearings of plastic, not only to ensure adequate strength, and its lighter weight to ensure the rotation of the bearing performance, while reducing the friction in the bearing, so that the application of more reliable and lubricating higher selectivity.In addition, the traditional pairing (or double row) tapered roller bearings, the contact angle is generally only about 20 °, while ensuring its larger radial load capability, china bearing company axial load carrying capacity and the ability to withstand the overturning moment subject to certain restrictions. SKF Bearing break through the traditional design of the contact angle, the contact angle of each single bearing enlarged to 45 °, in the bearing radial load capacity of the premise, greatly strengthened the axial load bearing capacity, while, SKF Bearings can also withstand large overturning moment. Configuration of the conventional double bearing comparison, SKF Nautilus bearing load is applied to two lines of intersection of the center line from the axis is much longer than the general configuration of tapered roller bearings, these two points of intersection on a point of the support shaft runs. But also to adjust the bearing preload condition to optimize the rigidity of the system.
Such a variety of structure and size of the bearing series |
09-25 |
Tapered roller bearings and needle roller bearings which is the difference ?Cylindrical roller bearing corp are precision bearings , precision roller sorting postal shaft ring wall to guide from the cage , and guide roller shaft ring composition, can be separated with another bearing rings , are separable bearings. Such bearing installation and removal more convenient, especially when required, the outer ring and the shaft housing are interference fit more shows its advantages ; these bearings are generally used only with radial load carrying loaded guns , only the inner and outer circles are single row bearings with ribs with a smaller or larger axial load steady intermittent axial load ; same size and shape as compared to other tired order , such bearings with high load, background noise , and high speed characteristics , ideal for all kinds of precision machinery and mining and mill machinery. But with such a bearing with the shaft , rolling and other related parts require precision machining.Needle roller bearings (NK, NKS, RNA49, RNA48, NKL, NKLS, NA49, NA48, RNA69, NA69, RNA49 ... RS, RNA49 .. 2RS, NA49 .. RS, NA49 .. 2RS, RNAO, NAO) structure compact , small radial size , load capacity, withstand greater radial load . Such a variety of structure and size of the bearing series , the needle assembly G2 level , grouping batches diameter variation in less than 2um , except full complement needle roller bearings are made ??of high resistance cage, able to correctly guide the needle parallel to the axis .
Rolling in the work allow slight noise |
09-12 |
needle rollerball bearing operating under conditions such as high speed, and high operating temperatures, special attention should be rotating rings can not be too loose to prevent eccentric, as well as non-fixed ferrule with a gap to prevent sleeve ring deformation under load and to stimulate vibrations.Rolling in the work allow slight noise, if the noise is too large or unusual noise or crash, it indicates that the bearing has failed.Preload is the bearing assembly to the inner or outer ring an axial force to remove the needle bearing clearance, and to move the body and the inner and outer contacts generated at the beginning of deformation. Preload can improve the working condition of the bearing stiffness and rotational accuracy, load bearing large, rotating high precision ball bearing mostly in the absence of even a small amount of clearance over the work of state interference, in which case it required in the assembly, the bearing preload. Clearance and preload adjustment are usually seen by the inner ring relative axial displacement of appropriate methods to complete. From the above process is not difficult to learn concepts, through to move the bearing clearance adjustment, can improve the bearing capacity and rotation accuracy, progressive bearing life. But at the same time make the bearing frictions, fever increases, so the clearance or preload adjustment when necessary to ensure good lubrication and heat dissipation. If improperly adjusted or poor lubrication, it will in turn cause increased bearing wear, reduced life expectancy.