The specific factors that affect roller bearing selection
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| Time：2016.10.21 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Roller bearings Usually roller bearings can be installed space is limited. In most cases, the shaft diameter (or idler bearing inner diameter) is limited by the mechanical design or other design. So roller bearing type and size of the choice is based on the idler roller bearing diameter and decision. As a result, the main dimensions of the standard idler roller bearings are based on the international standard diameter size of the system.
Dimensions roller bearings in many forms, in the mechanical design of the best use of standard roller bearings (this design to the roller bearings are easy to purchase, here to say a digression, some of the entrance roller bearing catalog on the model There are some non-standard roller bearings in mainland China is not in stock, and sometimes the futures will be a long time, so the roller bearing selection to consider the time cost and the cost of the late replacement) roller bearing load, Load on the roller bearings, its nature, size, direction is changing. Normally, the rated basic load is displayed on the dimension table. But the axial load and radial load, etc., is also an important factor in selecting the appropriate roller bearings. When the ball and roller needle roller bearing size match, needle roller bearings usually have a higher load capacity and withstand greater vibration and shock load.
Second, speed
Promise speed is based on the roller bearing type, size, accuracy, cage type, load, lubrication, and cooling methods and other factors. Roller bearing table lists the standard precision roller bearings in the oil lubrication and grease lubrication of the agreed speed. Typically, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation of the occasion.
Third, bearing tolerances
Roller bearing dimensional accuracy and rotation accuracy is based on ISO and JIS standards. For machines requiring high precision and high-speed operation, it is recommended to use roller bearings with a precision of 5 or more, deep groove ball bearings, radial thrust ball roller bearings or cylindrical roller idler bearings for high-accuracy machines. Rigid, when the roller bearings of the moving body and raceway contact surface compression, will produce elastic deformation. Some machines need to minimize the elastic deformation. Roller idler roller bearings than ball roller bearings have a small amount of elastic deformation.
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