How to install 22320cj/c33 spherical roller bearing
The bearing outer ring is tightly matched with the bearing seat hole, and when the inner ring and the shaft are looser matched, the bearing can be pressed into the bearing seat hole first, and the outer diameter of the assembling sleeve shall be slightly smaller than the diameter of the seat hole. If the bearing ring and the shaft and hole are tight fit, installation of interior ring and the outer ring and pressed into the shaft and hole structure, the assembly sleeve should be able to face tight and bearing inner and outer rings. B. heating fits through heating bearings or bearing housings, and uses thermal expansion to change the tight fit into loose fit. The utility model is a common and labor-saving installation method. This method is suitable for a large amount of surplus bearing installation, hot charging before the bearing or separable bearing rings into the tank in the uniform heating of 80-100 DEG C, then removed from the oil as soon as possible fitted to the shaft, to prevent cooling after the end face of the inner ring and shaft shoulder joint is not tight, the bearing cooling can be axial fastening. When the bearing outer ring is tightly matched with the light metal bearing seat, the hot fitting method of the heating bearing seat can be used to avoid the abrasion of the mating surface.
The installation method of bearings should be installed according to the bearing structure, with the properties of size and bearing components and pressure should be added directly in a tight fit to ring face, shall not transfer the pressure through the rolling bearing installation, generally use the following method: A. press fit bearing inner ring and shaft which is tightly matched with the outer ring and bearing seat hole is a loose fit, can press the bearing pressure mounted on the shaft, and the shaft together with the bearing load in the bearing hole, pressing on the end surface of the inner ring, a soft cushion assembly sleeve made of metal material (copper or steel).
With oil tank heating bearings, from the bottom at a certain distance should be a mesh, as shown in Figure 2-7, or with a hook hanging bearing, bearing can not be put on the bottom, to prevent the heavy impurities into the bearing or uneven heating, the tank must have a thermometer, strictly control the oil temperature is not more than 100 degrees. In order to prevent the occurrence of the tempering effect, the ring hardness decreased. The installation of C. thrust bearing thrust bearing and shaft in general for comprehensive transition fit, with the seat ring and the bearing hole in general for clearance, the bearing is easy to install, bidirectional axial spring thrust bearing should be fixed on the shaft, to prevent relative to the axis. Bearing installation method, in general circumstances is the rotation of the shaft in the majority, and therefore the inner ring and the shaft of the tie to win over, and the bearing outer ring and the bearing room for the coordination of clearance. The bearings shall be checked and the bearings shall be installed. After the installation is finished, the operation shall be checked immediately and the installation has been confirmed.
