What is the difference between a rolling bearing and a sliding bearing?

Update:2017-06-30

What is the difference between a rolling bearing and a sliding bearing?

Rolling bearing is the operation of the shaft and the shaft between the sliding friction into a rolling friction, thereby reducing the friction loss of a sophisticated mechanical components. The sliding bearing is a bearing that operates under sliding friction. The difference between the two is as follows:
1, the rolling bearing is to rely on the rotation of the rolling body to support the rotation of the shaft, the contact part is a point, rolling more, the more contact points; sliding bearing is a smooth surface to support the rotating shaft, so the contact area is a surface.
2, the rolling bearing movement is rolling; sliding bearing movement is sliding, which determines their friction form is completely different.
3, rolling bearings usually by the inner ring, outer ring, rolling body and rolling cage 4 parts; sliding bearing the most basic structure is the bearing and journal, the structure is relatively simple.
4, the radial size of rolling bearings larger, poor vibration capacity, sound larger, generally used in relatively small machinery and equipment; sliding bearings work smoothly, reliable, noisy, the general application of low-speed heavy load conditions under.
Through the above analysis, I believe you can identify the rolling bearing and sliding bearings. The biggest difference between the two is whether the rolling body, which also determines the composition of their different, different sports, there are different occasions for the application.