Compound bearing is a fine part, so it is required to b […]
Compound bearing is a fine part, so it is required to be very careful in application. Even if the high-performance bearing is used, if it is not used properly, it can not achieve the expected performance effect, and it is easy to damage the bearing. Therefore, attention should be paid to the following items when using bearings:
1、 Adhere to the cleaning of the bearing and its surrounding environment, even if the invisible dust enters the bearing, it will increase the wear, vibration and noise of the bearing.
2、 When using the device, it is necessary to be careful. It is not allowed to punch strongly, strike the bearing directly with hammer, and transmit pressure through rolling element.
3、 Use appropriate and accurate installation tools, use special tools as far as possible, and try to prevent the use of cloth, staple fiber and other things.
4、 To avoid the corrosion of the bearing, when you take the bearing directly by hand, you should wash the sweat off your hands and apply high-quality mineral oil before stopping the operation. In rainy season and summer, you should pay special attention to rust prevention. However, under some special operating conditions, the bearing can achieve a better life than the traditional calculation, especially under the condition of light load. These special operating conditions are that when the rolling surface (track and rolling element) is effectively separated and limited by a smooth oil film, the surface damage may be caused. In fact, under ideal conditions, so-called eternal bearing life is possible.
5、 The service life of the bearing, the service life of the rolling bearing is defined by the number of revolutions (or the working hours at a certain speed): for the bearing within this service life, the initial fatigue damage (spalling or defect) shall occur on any bearing ring or rolling element. But no matter in the laboratory experiment or in the theoretical application, it can be clearly seen that under the same working conditions, the appearance of the same bearing, the theoretical life is very different. In addition, there are several different definitions of bearing "life", one of which is the so-called "working life", which means that the theoretical life of a bearing before damage is caused by wear, damage is usually not caused by fatigue, but by wear, corrosion, seal damage, etc.