Classification of structure type: there are many classification methods for rolling bearings. If they are divided according to the load direction or nominal contact angle they can bear, they can be divided into radial bearing and thrust bearing

According to GB / T 272-1993, the code of rolling bearing in China uses letters and numbers to represent the structure, dimension, tolerance grade, technical performance and other characteristics of rolling bearing. Here is an introduction for

The inner and outer race raceways and rolling elements of the bearing carry out relative rolling movement under the action of high contact stress, and the general contact stress is between 1000 ~ 400ompa. At the same time, rolling elements and raceways

The internal geometric factors of rolling bearing will seriously affect the overall bearing capacity, friction and wear, accuracy, stiffness and other performance of the bearing. The small difference in internal design will make the bearing performance significant

Sealing methods of bearings: there are three sealing methods of bearings, including antirust oil sealing, vapor phase agent sealing and water-soluble antirust agent sealing. At present, antirust oil sealing is widely used, and common antirust

The bearing shall be installed in a dry and dust-free room as far as possible, and shall be far away from metal processing or other equipment that will produce debris and dust. When the bearing must be installed in an unprotected environment

During regular inspection or replacement of parts, it is necessary to disassemble the bearing. At this time, the shaft and bearing housing usually need to continue to be used, and the bearing often needs to continue to be used and recycled, so the disassembly of the bearing is very important.

Before installing the bearing, the matters needing attention are as follows: 1. Select the bearing without damaged packaging for installation. In general, there is no need to clean the rust inhibitor on the new bearing, just wipe the bearing

The faults of rolling bearing mainly occur in three parts: rolling element, outer ring and inner ring. The general fault types are shown in Figure 1. The impact interval and strength produced by different fault types of rolling bearings are different

Rolling bearing is a widely used rotating general parts. Its working state is directly related to the performance and safety of equipment, and the failure of rolling bearing is an important reason for the failure of machinery and equipment.