How to correctly install replacement FAG rolling bearings technology

FAG rolling bearings radial internal clearance as bearing on the cone shaft neck and narrow. By measuring the decrease value, the interference which can determine the degree of tightness and cooperate. For cone bearing inner ring installation always USES the interference fit. Unlike cylindrical hole bearing, cone bearing interference level is determined by the selected axis fit tolerance, but by the bearing in the cone shaft and shaft sleeve or withdrawal of the forward distance on the decision. Install the self-aligning ball bearing, toroidal roller bearing, spherical roller bearings and tapered hole of high precision cylindrical roller bearing, to determine the radial internal clearance decreased value or cone base on axial forward distance, measure the amount of interference. Clearance decreased and axial forward distance guidance value, has the following parts: 1, the small bearing small FAG rolling bearings can use nut, to advance to the cone base. In the case of the collar, then use the sleeve nut. Small sleeve nut available back into the bearing hole. Available to hook spanner or pneumatic wrench and tighten the screw as well. Before installation, should be on the surface of shaft and sleeve slightly a little oil. 2, the installation of large and medium-sized bearing large bearing the required force increased significantly, and should use the hydraulic nut and/or filling method: ( 1) When using hydraulic nut bearing installation, it must be positioned in the thread section of the journal or the sleeve on the thread of the ring piston abuts on the shaft of bearing inner ring, nut or retaining ring on the shaft end. Through the pump oil into the hydraulic nut to safe and accurate force installation, move upward in axial piston. Using hydraulic nut, install to (spherical roller bearing 2) Oil injection method is used, the oil injection under high pressure bearing and shaft neck, forming a layer of oil film. This layer of oil film split mating surface, significantly reduce the friction between the mating surface. In the bearing directly installed to the cone axis neck, generally in this way, but also used in the designed for filling method set set and shirk set installed on the bearing. Oil pump or the necessary pressure lubricator, the groove on the shaft or sleeve and oil channel, the oil injection between mating surface. FAG rolling bearings design layout, the necessary groove is arranged in the shaft must be considered and the channel. Spherical roller bearing installed on the grease groove of withdrawal, with the oil into the matching surface, and, in turn, tighten the screws, to press the withdrawal sleeve into the bearing hole. FAG rolling bearings installation had better use hydraulic tools, but most of the teachers is to use a hammer in, this will inevitably impact on bearing. Here is the installation of the bearings and replace technical considerations: ( 1) Work together as much as possible through the axis of the bearing, this requires the screws even symmetry and smooth, by spherical or parallel to the axis force application. ( 2) Wire should be smooth and uniform, the size of the unfavorable impact, this request can use hydraulic or use steady pull or pressure tool, it had to use hammer, also want to through soft without exfoliation metals such as copper sleeve to buffer, tapping force as gently as possible. It is best to use copper or copper hammer hammer. ( 3) Avoid by applying pressure roller, which requires the inner ring (installation Axial circle) When applying pressure through the inner ring and outer ring installation) Through the outer power works. ( 4) The extent of the drag force continued to be, for example, when installing a bearing in FAG rolling bearings fit into the correct position to stop work, guarantee the ring ( Washers) The end face of landing on a hole or shaft shoulder end, neither packed too tight, nor does not reach the designated position.