Load is the most important basis for selecting bearings. Generally, spherical roller bearings should be selected according to the size, direction and nature of the load. When selecting the bearing type according to the size of the load: ① The rolling elements of spherical roller bearings are in line contact, which can bear larger bearings, and the deformation is small after loading. ②The rolling elements of the ball bearing are in point contact and should bear light or moderate loads.
When selecting the bearing type according to the direction of the load:
①A thrust bearing is generally used for single axial load, a thrust ball bearing can be used for a small load, and a thrust roller bearing can be used for a large load.
②Single radial load generally uses deep groove ball bearings, cylindrical roller bearings or needle roller bearings.
③ When bearing radial load, with smaller axial load, deep groove ball bearing, angular contact bearing with smaller contact angle or tapered roller bearing can be selected; with larger axial load, angular contact with larger contact angle can be selected Contact bearings, tapered roller bearings, etc.
Generally speaking, the rotation speed has little effect on the selection of the type of spherical roller bearing, and it has a significant effect only at high speed conditions.
①At high speed, the spherical roller bearing is preferred, which has a higher limit speed;
②The solid cage allows higher rotational speed than the stamping cage;
③ The lighter the rolling element, the more suitable for high-speed operation;
④ Thrust bearing can be selected for low speed;
⑤ High speed and small axial load, spherical roller bearings can be selected.
1. When the bearing seat has no split surface and the spherical roller bearing components must be installed and removed in the axial direction, the bearing with the inner and outer rings that can be divided should be preferred.
2. When installing on the long shaft, in order to facilitate disassembly and assembly, a bearing with a tapered hole in the inner ring can be selected.
Usually, after selecting the bearing type, it is necessary to check the rated load and limit speed of the selected bearing, and determine the final solution according to the structure, size, tolerance level and clearance of the bearing. DOCKING BEARING manufacturers provide you with customized spherical roller bearing solutions to meet your different working conditions.
How to deal with noise when using spherical roller bearings Although the bearing quality and other aspects are relatively good, the rolling bearing is a precision component, and its use must also be carried out with caution. No matter how high-performance bearings are used, if used incorrectly, the expected performance will not be obtained. The precautions for the use of spherical roller bearings are as follows:
(1) Keep the bearing and its surroundings clean.
Even small dust that cannot be seen by the eyes will have a bad effect on the spherical roller bearing. Therefore, keep the surrounding clean so that dust does not penetrate the bearing.
(2), use with caution. If the bearing is given a strong impact during use, scars and indentations will be produced, which will become the cause of the accident. In severe cases, cracks and fractures may occur, so care must be taken.
(3), use appropriate operating tools. Avoid replacing existing tools, you must use the right tools.
(4) Pay attention to the corrosion of the bearing. When handling spherical roller bearings, sweat on your hands can be the cause of rust. Be careful to operate with clean hands and wear gloves as much as possible.