Note the ball-cage around the middle eccentric B, and the sealing pieces L pressed outwards by springs .

注意球笼中左右偏心B ，以及密封件升的压力向外由泉水。

youdao

Note the ball-cage around the middle eccentric B, and the sealing pieces L pressed outwards by springs .

注意球笼中左右偏心B ，以及密封件升的压力向外由泉水。

youdao