How to choose the bearing type

How to choose a bearing type: 1. 1 bearing space of rolling bearing to allow space and its adjacent components generally limited, so the type and size of the bearing must be within the limits of this choice. In most cases, the diameter of axle by first. 。 。 Fixed machine design; Therefore, the bearing is often choose according to the aperture. For rolling bearing, there are many standard size series and types, and select the best bearing which is necessary. Figure the size of the radial bearing series and the corresponding bearing type. How to choose a bearing type: 2. 2 load capacity and bearing type bearing axial bearing capacity is closely related to radial load capacity way depends on the bearing as shown in the design in figure 1. This figure clearly shows that when comparing the same size series of bearing, spherical roller bearing load capacity is higher than the ball bearing, if there is impact load, is superior. How to choose a bearing type: 3. 1 allows the speed and the maximum speed of rolling bearings bearing type change depends on not only the type of bearing, and its size, cage, load, lubrication, heat dissipation of assumptions common oil bath lubrication, bearing type roughly arranged at a high speed to as shown in figure 1. 3. 2 inner ring/outer ring without taking the deflection caused by axial stress load bearing type, the size of the shaft and housing error, as well as the installation errors, inner ring and outer ring slightly different dislocation. Allow do not match the alignment depends on the bearing type and operating conditions, but usually it is a small Angle less than 0. 0012 radian ( 4 ' ） 。 When is expected to have large deviation, bearing self-aligning ability, such as self-aligning ball bearing, spherical roller bearing should choose bearing unit.