Noise, Friction and Bearing Structure
In use, bearings are often required to have an inherently low noise level, such as the selection of motor bearings, which is a very important factor. At present, the noise of the bearing is measured by the acceleration vibration value. The vibration value of the motor bearing is lower than the technical requirements of the Z1 group, which can meet the noise requirements of the motor. It can also manufacture low-noise bearings for motors in the Z2, Z3, and Z4 groups.
The frictional resistance of the bearing is related to the bearing type, size, load and speed, and lubrication conditions. The frictional torque of rolling bearings is much smaller than that of sliding bearings, especially the starting frictional torque. In instruments and machinery that require low friction torque, deep groove ball bearings, cylindrical roller bearings or self-aligning ball bearings are usually selected to withstand radial loads.
When the bearing bears the combined load, the angular contact ball bearing is selected. When the load angle and the contact angle are basically the same, a smaller friction moment can be obtained; if the gap between the two angles is large, the radial load bearing can be used. Bearing and axial load bearing thrust bearing assembly method to solve. Low friction torque bearings should avoid using contact seals, because the friction torque of contact seals is greater than the friction torque of the bearing itself.