Jiaxing bearing performance and structure of the rolling bearings to install factors

There is rotational, have HRB bearing ( ) Jiaxing bearing performance and structure of the rolling bearings to install factors. Jiaxing bearing group sales co. , LTD. ( The company) Is jiaxing bearing factory set up in the spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong cash supply ability. Analysis, the main task of the service life of rolling bearing is based on a lot of background material, analyze data and failure forms, find out the main factors of bearing failure, so that the improvement measures are put forward, prolonging bearing, avoid premature failure of the rolling bearing of the sudden. Installation method of rolling bearing, for bearing fit, conditions, structure and decide, in general, as more as the axis of rotation, so the inner circle need interference fit. Cylindrical hole bearing, multi-purpose press pressure into, or multi-purpose hot charging method. Taper hole, installed directly on the taper shaft, or use the socket installation. Refers to the relative sliding friction between the surface abrasion failure lead to constant wear and tear of the working surface of the metal and the failure. Continuous wear will cause rolling bearing parts damaged gradually, and the ultimate result in the loss bearing dimensional accuracy and other related topics. Wear may affect the appearance change, the increase of fit clearance and working surface morphology change, may affect the lubricant or make its pollution to a certain degree of lubrication function is lost, so that loss of bearing rotating accuracy and will not operate properly. Wear failure is one of the common failure modes of all kinds of bearings, according to the wear and tear is usually divided into one of the most common form of abrasive wear and adhesive wear. The first thrust angular contact ball bearing thrust angular contact ball bearing contact Angle is generally 60 & deg; Commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings, mainly used for precision machine tool spindle, commonly used together with the double row cylindrical roller bearing, it can be subject to bi-directional load and have high precision, good rigidity, low temperature, high speed, convenient installation. Second deep groove ball bearing deep groove ball bearings on the structure of each ring has cross section is about the equator of the ball perimeter of a third consecutive raceway groove type. Deep groove ball bearing is mainly used to bear radial load, also can absorb a certain amount of axial load. When the rolling bearing radial clearance increases, has the properties of Angle contact ball bearing, can carry alternating axial load in two direction. Compared with other kinds of bearings of the same size, such bearing small friction coefficient, extreme high speed, high precision, is a user selection of the preferred type of bearing. Deep groove ball bearing has simple structure, easy to use, is the production batch is the largest, the most widely application scope of a class of bearings. Third thrust tapered roller bearings as the roller in the thrust tapered roller bearings for tapered roller, the rolling bus bar in the structure and the washer raceway of busbar are concurrent in the bearing axis line at some point, therefore the rolling surface can form pure roll, limit rotational speed is higher than the thrust cylindrical roller bearings. Features: thrust tapered roller bearings can withstand one-way axial load. Thrust tapered roller bearing type code 90000 type. Fourth double row tapered roller bearing the structure and characteristics of double row tapered roller bearing structure is various, 35000 is the maximum model, there is a double raceway outer ring and two inner ring, a baffle between the two inner ring, changing the thickness of the baffle can adjust the clearance. This type of bearings in bear radial load at the same time it can be subject to bi-directional load, can be within the scope of the bearing axial clearance limit shaft and the shell axial displacement. The structure characteristics of tapered roller bearing. Tapered roller bearing type code 30000, tapered roller bearing for separating type bearing. Tapered roller bearing is mainly used to bear the joint mainly consisting of radial load and axial load. Compared with the angular contact ball bearing, large carrying capacity, limit rotational speed is low. Tapered roller bearings can withstand axial load in one direction, can limit axial displacement of shaft or housing in one direction. Rolling bearing in the work, because of external or internal factors, change the original fit clearance, lower accuracy, and the change of 'killed' called clearance failure. , large amount of the external factors such as interference of installation does not reach the designated position, temperature rise caused by the expansion, instantaneous overload, etc. , internal factors such as residual austenite and residual stress is in not not disorderly state changes are caused by clearance of the main causes of failure. Bearing on the coating of rust-proof oil has good lubrication performance, for general purposes of bearing or bearing grease filling, can not directly use cleaning. But for the instrument bearing or bearing for high-speed rotation, the application of clean cleaning oil washed away anti-rust oil, when the bearing is easy to rust, not for a long time. Clean the bearing and the shell, confirm no scar or mechanical processing of burr. Shell has absolutely can not have abrasives ( SiC and Al2O3, etc. ) Sand, scraps, etc. Rolling bearing manufacturing typically by casting, heat treatment, turning processing, grinding and assembly process. The processing technology of justice, improve the elder, not will also affect the bearing of life. Which affects the quality of finished products bearing heat treatment and grinding process, tend to have a more direct relationship with bearing failure. In recent years the study of metamorphic layer of bearings working surface show that the grinding process tightly close to the surface quality of the bearing. 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