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Too much oil in the bearing and box will cause the bearing to slip

Too much oil in the bearing and box will cause the bearing to slip

2022-01-04

An excessive amount of oil in the spherical roller bearing and the box will cause the rolling element of the spherical roller bearing to slip, causing the rolling friction of the rolling element to change from rolling friction to sliding friction, and damaging the rolling element of the spherical roller bearing. Due to the spherical roller bearing oil If the amount is too much, the free space in the spherical roller bearing box is small, the operating temperature of the spherical roller bearing will rise, the grease density will decrease, the lubricating oil film of the rolling element will become thinner, and the lubrication conditions will be poor, which is easy to cause the spherical roller bearing Abnormal noise and slippage on the surface shorten the life of spherical roller bearings. Generally, a spherical roller bearing oil chamber is provided on the side of the end cover (except when designed as a double-sealed spherical roller bearing). According to the speed, the oil filling amount of the spherical roller bearing chamber can be implemented according to the following standards: speed <1500r/ At min, the amount of oil added is 2/3 of the volume of the spherical roller bearing chamber. When the speed is between 1500 and 3000r/min, it is 1/2 of the volume of the spherical roller bearing chamber. When the speed is greater than 3000r/min, it should be less than or equal to 1/3 of the volume of the spherical roller bearing. In the actual work process, for spherical roller bearings running at high temperature and high speed, spherical roller bearings with sealing surfaces should be used as little as possible, increasing the oil cap storage capacity, and installing a fuel nozzle, which can improve the spherical roller Operating life of sub-bearings.

The intrusion of foreign matter can easily cause bearing failure


Foreign body intrusion. Try to use special tools and try to avoid the use of cloth and short fibers, so as to prevent fine fibers from entering the spherical roller bearing and causing unnecessary damage. For example, when installing a spherical roller bearing, the staff used the copper rod knock-in method, which easily caused the uneven axial force of the spherical roller bearing, causing deformation of the cage, damage to the rolling elements, and increased clearance. During the striking process of the copper rod, the copper powder flies into the cage of the spherical roller bearing, which is easy to cause the failure of the spherical roller bearing. What is the disadvantage of poor bearing installation?


Poor installation. The installation of spherical roller bearings is to follow the installation steps of spherical roller bearings, do not install and dismantle brutally. Whether the spherical roller bearing is installed correctly or not is related to the service life of the spherical roller bearing, so everyone must pay attention to it. When installing a spherical roller bearing, avoid holding it directly by hand, because sweat on your hands may also cause rust. Don't ignore the small links. When installing the spherical roller bearing, the most important thing is not to allow strong punching or to directly hit the spherical roller bearing with a hammer, not for fear of breaking it, but for fear of deformation and deformation of the spherical roller. The bearing is unusable. There is also no pressure to pass through the rolling elements.

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