Vehicle power steering valve with centering device

摘要

The two steering valve (1) elements (4,8) can rotate relative to one another and the two centering elements (17,18) can rotate relatively as joined to the valve elements (4 and 8). The first centering element is sprung (28) onto the second element. Radial grooves (24,25) on each centering element hold an inserted roller ball (26). The valve elements are first centered without device (16), then joined to the post-fitted centering elements prior to axial convergence in the guide way (20). The second centering element is conically grooved (35) at the periphery for tools etc. and the two valve elements (4,8) have an interposed needle bearing (6) whose cage (27) has noses (27a) to engage the respective centering elements (17,18).