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Selection of rolling bearing types
Rolling bearings are standard parts, and the type and specification of rolling bearings should be selected proficiently in the process of mechanical design.
(1) In mechanical design, the general process of rolling bearing selection is shown in the figure below
(2) Issues that should be paid attention to in the selection of rolling bearing types: 1. Consider the bearing load condition of the bearing Direction: When receiving radial force, use radial bearing; when receiving axial force, use thrust bearing; when radial force and circumferential force are combined, use radial thrust bearing; Size: When receiving large load, use roller bearing , or a bearing with a larger size series; when subjected to a small load, a ball bearing or a bearing with a smaller size series can be used ; 3. Considering the speed of the bearing Generally speaking, ball bearings can adapt to higher speeds than roller bearings, and the bearings of the light series have a higher speed than the bearings of the heavy series. In addition, the limit speed of various thrust bearings is very low. , it is not easy to be used in the case of high speed. 4. Considering the self-aligning requirements of bearings, both self-aligning ball bearings and self-aligning roller bearings can meet certain self-aligning requirements (that is, the axis line and the center line of the bearing seat hole can be properly deflected), while cylindrical roller bearings, The ability of tapered roller bearings and needle roller bearings to meet the self-aligning requirements is almost zero.
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