Ball bearing and oil bearing

Ball bearing and oil bearing


Ball bearing changed the bearing friction, rolling friction is adopted, the more effectively reduces the friction phenomenon between the bearing surface, sealed angular contact ball bearing effectively enhance the service life of the fan bearing, and therefore will prolong the service life of the radiator.

The disadvantage is that the process is more complex, resulting in higher cost, but also bring higher working noise.

Oil bearing sleeve bearing is to use sliding sleeve bearings, using oil as a lubricant and drag reduction agent, angular contact thrust ball bearing the initial use of operation low noise, low manufacture cost, but the bearing wear serious, life is ball bearing has a big gap.

Special combination bearings of machine turntable

Turntable bearing CNC machine tools and machining centers as an important component parts, its performance directly affects the positioning accuracy and machining accuracy of the workpiece, the bearing structure of complex, high-tech and difficult process, ZYS an earlier successful development of such high-precision bearings products in the domestic manufacturers.

Turntable bearing has two types, one is thrust / radial bearings that single row cylindrical roller bearings and thrust cylindrical roller bearing. The other is a two-way angular contact thrust ball bearing . Currently, sealed angular contact ball bearing the turntable bearing rotary table machine, indexing plate, etc. are basically used axial / radial bearings.

Why two way thrust angular contact ball bearing can't bear radial load?

By the two axis ring, a seat ring, a sleeve, surface profile measurement ,two sets of roller and cage assembly. The thickness of the grinding sleeve can adjust the preload of the bearing.

The nominal contact angle of the bearing is 60 degree, which can bear the large axial load, and the axial rigidity is high.

The nominal diameter of the contact ball bearing and the outside diameter of the double row cylindrical roller bearing are same, sealed angular contact ball bearing but the deviation is small, so the fit of the hole of the box is in a certain gap. Therefore, the two-way thrust angular contact ball bearing can not bear radial load.

Rolling bearing accelerated life testing machine

This paper summarizes the status and development of rolling bearing accelerated life testing machine and the test technology. Discusses the design of life testing, analysis and processing, the life test data. In the eleven five China bearing industry development planning, key requirements carried out to improve the bearing life and reliability engineering technology research. Low cycle load, high speed bearing ,the traditional bearing life test method of high speed, high cost and reliability of test results. And strengthen test while maintaining contact fatigue failure mechanism of the same premise. Shorten the test time.

Reduces the test cost, thus speeding up the development cycle in the product and improve the pace, angular contact thrust ball bearing ,so the accelerated bearing life test has attracted more and more attention, research and application.

Wazhou wind power spindle bearing testing machine Chinese Patent Excellence Award

Recently, the State Intellectual Property Office and the WIPO jointly held the 16th China Patent Awards announced in Beijing, surface profile measurement ZWZ wind power spindle bearing testing machine technology by China Patent Excellence Award. This means that the market value of this technique has been nationally recognized.

According to the Institute of wind power bearing ZWZ engineering and technical personnel Lin Tian introduced WBGC wind power spindle bearing testing machine first of its kind in the country. As the domestic wind turbine supporting spindle bearings imported products, roughness measuring instrument ,domestic enterprises that type of bearing bearing design, manufacturing technology is relatively backward, especially the lack of independent testing machine is a major bottleneck.

In recent years, ZWZ spindle bearings through the development of wind turbine test methods and platforms to build fan support spindle bearing test platform and testing standards and testing procedures, and ensure that all domestic fans supporting bearing reached the international advanced level. Wafangdian Bearing Group has been successful for Guangdong Mingyang, sealed angular contact ball bearing , VESTAS and other customers at home and abroad to provide 1.5 MW, 2 MW, 2.5 MW and 3.0 MW wind turbine supporting spindle bearings.

Part of the high-precision bearings need to rely on imports secret

Although in recent years, international competitiveness of products has improved, but are mostly concentrated in the middle and low areas, such as low-value-added products, Rolling mill bearing ,some high-precision bearings need confidential dependence on imports, especially high-end precision bearings still need to import. Case in precision machine tool spindle bearings, spindle bearings as the basis for machine tool accessories bearing, its performance directly affects the speed of the machine, rotary precision,super-precision bearing ,rigidity, anti-chatter vibration cutting, noise, temperature and thermal deformation, thereby affecting accuracy, surface quality machined parts.

For CNC machine tools, machining centers and other high-speed, high-precision machine tool spindle bearing, you need to choose P4 and above grade ultra precision bearings. With the rapid development of numerical control technology, complex, high-speed, intelligent, sophisticated,sealed angular contact ball bearing ,environmental protection has become a major trend in today's machine tool industry technology development.

ZYS high speed precision bearing

High-speed precision bearings as Luoyang Bearing Science Technology Co., Ltd., one of the pillars of products,Rolling mill bearing has been formed to precision machine tool spindle bearings, rolling screw bearings, turntable bearings, high-speed spindle bearings, high-speed woodworking machinery bearings, bearing the printed circuit board dedicated high-speed drilling and milling machine and marine turbocharger bearings as the leading products bearing production system.

Structure type ZYS production of high precision bearings angular contact ball bearings, including ceramic ball bearings; single, double row cylindrical roller bearings; deep groove ball bearing; three, four-point contact ball bearings; angular contact thrust ball bearing; rolling screw special ball bearings, tapered roller bearings, thrust / radial bearings and other types of bearings.