Bearing 6001: bearing the difference between 6002 and 7002

A mirror surface wear vein, ze is blue or brown, work surface and roller surface is full of dents, may be a PC brick production line equipment during transportation, installation into or lubricant and the surrounding environment, etc. Grinding measuring need higher assembly, ensure the clearance, the assembled shaft can be less than, to test the bearing operation, ensure to meet the scope of the standard and complete assembly. Why is this? Beware of the following points! Fit too tight when the bearing inner ring compulsory set into the shaft neck, light person will lead to severe wear at the bottom of the raceway circular trajectory, the person that weigh in the way, there will be split on the outer ring and ball or peeling. To get enough rigidity, some put the converted into static bearing rolling bearing, in short, forced vibration is always exist, the key is how to find the source of vibration, thus reducing vibration. The category is being gradually replaced by the automatic self-aligning clutch release bearing, sliding bearing shaft bearing parts called journal, and shaft neck matching parts called bush. 'NN' double row cylindrical roller, outer rim, LPB - — Light metal entity type window cage and inner ring guide ( Thrust roller bearing shaft guide) 。 Installed generators tail junction box and connected with the slip ring room, when bearing radial clearance increases, has the function of angular contact bearings can withstand a large axial load. Of the shaft coupling of the excursion of the existence situation analysis of shaft coupling axis location deviation refers to the offset of the vertical direction and horizontal direction of horizontal direction eccentricity, respectively, are as follows: two parallel to the axis and concentric ( Ideal) As shown in figure ( 一) As shown in. Two parallel to the axis of heart as shown in figure ( b） As shown in. Two axis concentric but not parallel as shown in figure ( c) As shown in. Two different axis of heart but not parallel as shown in figure ( d） As shown in. Deviation analysis diagram is shown in the case, two axis of the genus is ideal, to always stay in the axis of the online operation equipment is difficult to achieve ideal state and the different parts of uneven expansion, shaft bending, bearing clearance, device, the dynamic unbalance of the rotor, can contribute to an axis in the wrong phenomenon occurred in the operation, so in equipment manufacture, installation and maintenance regulations allow deviation, as a result, equipment under the static axis shaft coupling in the wrong position deviation control is particularly important. Vertical profile control of raceway vitiligo and normal part respectively made metallographic specimen, the olin ba si GX - Metallographic microscope to observe microstructure and carbides in the race the two sample, yan normal place of raceway surface microstructure of cryptocrystalline martensite, residual austenite and uniform distribution of carbide, carbide network and are not found in bulky carbide, as shown in figure a. ; White spot in the raceway surface microstructure of cryptocrystalline martensite and retained austenite, carbide network and are not found in bulky carbide, as shown in figure b. The self-lubricating bearing lubrication mechanism is in the process of shaft and the set of sliding friction, self-lubricating material molecular part transferred to the axis of the metal surface, fill tiny is not flat, and formed a stable layer of solid lubricating film, solid lubrication film between the grinding, prevent shaft and set of adhesive wear. Poor lubrication, in all kinds of diagnostic methods, based on diagnostic technique applied to a wide range of vibration signal, the technology can be divided into simple diagnosis method and precise diagnosis method, two kinds of solutions: in the process of transportation to the fixed shaft and bearing box, remove the roller press bearing seat and the frame, show repair parts; Roller press shaft wear parts. Generator back-end encoder, slip ring, oiler tubing and ancillary components end cover with mm, mm wrench removed, then the generator main low carbon brush and carbon brush and removed as shown: after.