Single row angular contact ball bearing installation

Single row angular contact ball bearing 2021 - installation profile 01 - Unit 01 zhongtian steel thermal power plant # 6 slurry discharge pump bearing assembly adopted the front axle two single row angular contact ball bearing and the rear axle of single cylindrical roller bearing assembly way, i. e. only 7311 a bearing 2 + 1 NU311EM only. One of the rear axle supporting bearings, cylindrical roller bearing is only as used to bear radial load in the operation of pump shaft; The front axle two single row angular contact ball bearings are a pump under axial load and radial load, bearing use so far; But as a result of single row angular contact ball bearing under pure radial load, due to the effect of rolling element load line with radial load is not in the same radial plane, therefore to produce internal axial force component, and its due to its structural design can only carry axial load in one direction, to meet the demand of the axial load of the pump, so it must be installed in pairs. Single row angular contact ball bearings can withstand radial direction load primarily diameter, the axial union load, also can withstand pure radial load, in addition to the tandem configuration, the other two configuration can carry axial load in either direction. When bear radial load, will cause the additional axial force. So generally need to be used in pairs, do any pair of bearing combination, installation of the bearings in pairs according to the outer ring different combinations of the end face can be divided into: back to back configuration, configuration, serial configuration (face to face Also known as: O configuration, X, T) Three types: (1) back to back configuration: back-to-back pairs of bearing load to the bearing axis line separate. Role can withstand axial load in both directions, but on the direction of each load only by a bearing. Back-to-back installed bearings provide relatively high bearing configuration rigidity, and can withstand the overturning moment. To assembly way on the site as the most commonly used way of assembly, apply to place more, the scene of the slurry discharge pump is to use the assembly mode. 6 # unit desulfurization slurry discharge pump front axle USES two 7311 bearing back-to-back 'O' configuration (2) face-to-face configuration: face to face of load bearing of pairs of lines to the bearing axis convergence. Role can withstand axial load in both directions, but on the direction of each load only by a bearing. This configuration as back-to-back pairs of high rigidity, and is not suitable for under negative moment. This configuration rigidity and the ability to withstand the overturning moment than the DB configuration form, the bearing can be subject to bi-directional load; (3) series configuration: serial configuration, load line parallel to the radial and axial load of bearing evenly Shared. However, the group can only carry on a direction axial load. If the effect of axial load in the opposite direction, or if there is a composite load, you must add a third bearing relatively series matching bearing adjustment. This configuration can also be in the same series of three or more bearing support, but can only carry axial load in single direction. Usually, in order to balance and limit shaft axial displacement, another supporting point should be installed to withstand another direction axial load bearing.