What kind of bearing is called a four-point contact ball bearing?
What kind of bearing is called a four-point contact ball bearing?
When the bearing bears radial load and axial load at the same time, the line connecting the stress point where the rolling element (steel ball) contacts the outer ring and the stress point where the rolling element (steel ball) contacts the inner ring, and the bearing The radial vertical lines form a certain angle, and this type of bearing is called an angular contact ball bearing.
Bearings that can bear radial loads and axial loads in one direction are called single-row angular contact ball bearings (the rolling elements are steel balls). This kind of bearing rolling element (steel ball) has only two stress points, upper and lower.
Four-point angular contact ball bearings can bear radial loads and bidirectional axial loads. When the bearings bear axial loads in different directions, the stress points acting on the rolling elements are also different. That is to say, when it bears an axial load in one direction, there are two stress points, upper and lower. When it bears an axial load in another direction, there are two stress points different from the previous two stress points.
If the same rolling element is subjected to different forces, there will be different stress points. In layman's terms, there are four stress points in total, so it is called a four-point angular contact ball bearing.
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