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.

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.

Wind turbines due to unstable wind

Wind turbines due to unstable wind, so the output is a change from 13 to 25V AC, subject rectifier charger, and then the storage battery charging, so wind turbines to generate electricity into angular contact thrust ball bearing. Then there is the protection circuit power inverter, the battery chemical energy into AC 220V mains, in order to ensure stable use. 

Mechanical connection and power transmission couplings horizontal axis wind turbine blades are connected by high-speed shaft and the gear box and universal elastic, the torque is transmitted to the drive shaft of the generator, this coupling should have good damping and shock absorption the characteristics, the performance of an appropriate amount of the absorption offset radial, axial, and at an angle, and the coupling mechanism can prevent overload. Another is direct drive turbine blades are not directly connected to the blower motor and the motor through a gearbox type.