Drive shafts and joints. Purpose, device and types

5.5.4 Constant velocity ball joint

A ball joint (for example, shown in Figure 5.38) consists of a body, which is made together with a shaft, a sleeve with recesses with a hole for connecting the second shaft and a bearing retainer. The entire mechanism is covered with a dust cap. Balls are installed between the sleeve and the body. In case if the angle between the first and second shafts changes, the balls inside start rolling, transferring force from the body to the sleeve.

Note
Dust cap is a corrugated rubber boot, which protects all elements of the CV joint from dirt, dust and water.

Figure 5.38 Ball joint of even rotational speeds.