Too much oil in the bearings and boxes will cause the bearings to slip.

Too much oil in the bearings and boxes will cause the bearings to slip.

Excessive oil in the spherical roller bearing and the box will cause the rolling elements of the spherical roller bearing to slip, causing the rolling friction to change from rolling friction to sliding friction, and damaging the rolling elements of the spherical roller bearing. Due to the oil in the spherical roller bearing If the amount is too much, the free space in the spherical roller bearing box will be small, the operating temperature of the spherical roller bearing will rise, the density of the grease will decrease, the rolling element lubricating oil film will become thinner, and the lubrication conditions will be poor, which will easily cause the spherical roller bearing to be damaged. Abnormal noise and surface slippage shorten the life of the spherical roller bearing. Generally, there is a spherical roller bearing oil chamber on the side of the end cover (except for double-sealed spherical roller bearings). According to the rotation speed, the amount of oil that can be filled into the spherical roller bearing chamber can refer to the following standards: rotation speed <1500r/ min, the refueling amount is 2/3 of the volume of the spherical roller bearing chamber. When the rotation speed is between 1500 and 3000r/min, it is 1/2 of the volume of the spherical roller bearing chamber. When the rotation speed is >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 operating at high temperatures and high speeds, the use of spherical roller bearings with sealing surfaces should be minimized, the amount of oil stored in the oil cap should be increased, and a refueling nozzle should be installed to improve the performance of the spherical roller bearings. sub-bearing operating life.

Foreign matter intrusion can easily cause bearing failure

Foreign body intrusion. Try to use special tools and try to avoid using cloth and short fibers to prevent fine fibers from entering the spherical roller bearing and causing unnecessary damage. Another example is when installing spherical roller bearings, the staff used the copper rod knocking method, which easily caused uneven axial force on the spherical roller bearings, causing cage deformation, rolling element damage, increased clearance, and During the tapping process of the copper rod, copper powder flies into the cage of the spherical roller bearing, which can easily cause failure of the spherical roller bearing. What are the disadvantages of poor bearing installation?

Poor installation. When installing spherical roller bearings, you must follow the installation steps of spherical roller bearings and do not install and disassemble them wildly. Whether the spherical roller bearing is installed correctly is related to the service life of the spherical roller bearing, so everyone must pay attention to it. When installing spherical roller bearings, avoid holding them directly with your hands, because sweat on your hands may also cause corrosion. Don't ignore small details. When installing spherical roller bearings, the most important thing is that strong stamping is not allowed, and the spherical roller bearings are not allowed to be directly hit with a hammer. It is not for fear of damage, but for fear of deformation and deformation of the spherical rollers. The bearing becomes unusable. Also, pressure is not allowed to be transmitted through the rolling elements.