What are the precautions for using thin-walled crossed cylindrical roller bearings?

Thin-walled crossed cylindrical roller bearings can be easily assembled in all directions of the spindle, and can be mass-produced through standardization and serialization, making them easy to assemble and use. , Helvetica, Arial, sans-serif; font-size: 14px; text-wrap: wrap; background-color: rgb(255, 255, 255);">

　　Thin-walled crossed cylindrical roller bearings can bear radial and axial loads at the same time, so the structure of crossed roller bearings can be much simpler than that of multiple sets of combined bearings. Due to high rotation efficiency and low heat dissipation, grease consumption is low. It has a series of advantages such as small size, high rotation accuracy, strong anti-deformation ability, large load-bearing capacity and flexible structural design. Equipment such as CNC machine tools, dividing plates, test turntables, medical equipment, optical telescopes and large radar antennas. However, there are many things to pay attention to when using them. Even fine dust that is invisible to the eye can have an adverse effect on the bearing. Therefore, keep the bearing and the surrounding environment clean to prevent dust and foreign matter from entering the bearing. In addition, it is necessary to pay attention to careful operation. If the thin-walled cross cylindrical roller bearing is impacted during operation, the thin-walled cross cylindrical roller bearing will be scratched and indented, which will become the cause of the accident. In more serious cases, it will cause cracks or even breakage in the cross roller bearing, so it is worth paying attention to.

       

　　Thin-walled crossed cylindrical roller bearings require suitable handling tools. Avoid replacing existing tools and use appropriate professional tools. Install and inspect in a dry and clean environment before installation. The machining quality of each component should be carefully checked before installation. All mating surfaces are carefully cleaned and deburred, and the unmachined surface of the casting is free of sand. Another important point is the control of its tolerance. In fact, after it is pressed into the bearing, it should be able to rotate flexibly without any obstruction. If the rotation is obviously not flexible, it means that the size of the shaft is too large and the tolerance should be reduced. If the imported bearing is pressed into the shaft, there is an obvious "sand grain" feeling when turning it by hand, it may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. The next thing to pay attention to is how the cross cylindrical roller bearing is assembled. Of course, this is mainly because the cross cylindrical roller bearing is a high-precision product. If it is not assembled properly, it is easy to cause damage to the bearing channel, resulting in damage to the thin-walled cross cylindrical roller bearing. The cross cylindrical roller bearing should have a special mold when assembling, and it cannot be knocked at will. When pressing into the shaft, only the small circle can be stressed, and when pressing the large circle, only the large circle can be stressed.

　　The above is about "Precautions for using thin-walled crossed cylindrical roller bearings". If you still don't understand, please call us. That's all for today's knowledge points. I hope it will be helpful to you. The next issue will bring more information about it.