At one end of the inner ring, the bearing is clamped to the shaft with an eccentriclocking ring (Figure 1.7) or with two setscrews (Figure 1.8).
在内圈的一端，轴承通过偏心锁定环(图1.7)或者两个定位螺钉(图1.8)被固定在轴上。
2
The utility model can efficiently prevent air locking phenomena and the eccentric wear of the plunger, increase the production quantity of raw oil and extend the service life of the oil well pump.