Antirust performance the grease used in the bearing must have antirust effect, and the antirust agent * can not dissolve in water The grease shall have good adhesion and can form an oil film on the steel surface, which can be maintained even if the grease is filled with water Mechanical stability grease will soften during machining, resulting in leakage When there are vibration applications, grease will be thrown into the bearing from the bearing seat If the mechanical stability of the grease is not enough, the grease will be thrown out of the bearing continuously, which will cause mechanical collapse of the soap structure and damage to the use of grease The oil seal must protect the bearing and lubricant to prevent foreign pollution. No matter sundries or moisture can penetrate into the bearing to prevent damage Correct installation and maintenance is an important factor to give full play to the longest service life of bearings At the same time, pay attention to the cleanliness of the

The suffix used for SKF single row angular contact ball bearing has the following meanings: A: the contact angle is 30 degrees AC: the contact angle is 25 degrees B: the contact angle is 40 degrees CA: Universal rationed bearing. In back-to-back or face-to-face configuration, the axial clearance is less than that of ordinary group (CB). CB: universal matched bearing. In back-to-back or face-to-face configuration, the axial clearance is ordinary group CC: universal matched bearing, In back-to-back or face-to-face configuration, the axial clearance is greater than that of the ordinary group (CB) DB: two bearings paired back-to-back DF: two bearings paired face-to-face DT: two bearings paired in Series E: optimized internal design f: machined steel cage GA: universal group bearing with light preload in back-to-back or face-to-face configuration GB: universal group bearing, In back-to-back or face-to-face configuration, with pre tightening GC: universal assembly shaft

There are two common types of noise caused by problems in bearing application, including scar sound and dust sound, which are described as follows: (1) scar sound and its control methods. If there is crack, indentation or corrosion on the rolling surface of rolling bearing, periodic vibration and noise like riveted rivets will occur. Its cycle may be fixed, but most of them correspond to the speed, The scars will occur continuously on the channel, and the scars will appear and disappear on the steel ball, and the noise will change with the installation and lubrication conditions. The control methods of this kind of noise include: do not knock the bearing during installation, and prevent the bearing from being installed obliquely when the bearing is assembled with the shaft and then installed into the bearing seat; Prevent bearing corrosion during storage and impact vibration during transportation; Use grease with high viscosity. (2) Dust noise and its control method

What is four point contact ball bearing: a set of four point contact ball bearing release bearing bears two-way axial load. The inner and outer ring raceways of contact ball bearing are peach shaped cross-section load. When the radial load is used, the steel ball point contact axial load acts. The steel ball point contact bears two-way axial load. The bearing bears moment load and has the function of single row contact ball bearing. The bearing forms point contact to ensure normal operation China's entry into WTO is not only a challenge, but also an opportunity. Experts pointed out that we should strengthen the research and development of CNC machine tools in China and speed up the development of universal CNC machine tools. Random talk on the service competition of China's machine tool manufacturing industry, the current situation and Prospect of China's milling machine and processing * market, the technical level and development direction of lathes at home and abroad, the production

We all know the importance of lubrication for bearings, so do anti friction bearings need lubrication? Today we take a look at the types and lubrication functions of anti-wear fag bearings with questions. Types of anti friction bearings: anti friction bearings are divided into two main types. They are ball bearings and roller bearings. At the same time, we should also know that due to the different manufacturers and specific uses of bearings, many different types have evolved according to these basic structures and. Lubrication function: the anti-wear lubricant has the following main functions: 1. Lubricate the sliding contact between the retainer and other parts of the bearing. 2. Lubricate any contact between the race and the roll that is not really rolling. 3. Lubricate the sliding contact between the roller and the guide in the roller bearing. 4. Lubricate all true rolling contacts in the bearing. Secondary function