公开(公告)号：WO2003079347A1

公开(公告)日：2003-09-25

申请号：PCT/US2003/007434

申请日：2003-03-12

Applicant: SEAGATE TECHNOLOGY, L.L.C.

Inventor： AIELLO, Anthony, Joseph

IPC: G11B19/20

CPC classification number: F16C33/107 ,  F16C17/045 ,  F16C17/107 ,  F16C2370/12 ,  G11B19/2009 ,  G11B19/2018 ,  Y10T29/49639 ,  Y10T29/49645 ,  Y10T29/49696

Abstract: A typical dynamic bearing design comprises a ring shaped or circular thrust plate mounted at or near the end of a shaft, the shaft defining together with a surrounding sleeve a journal bearing by providing grooves on only one of the two surfaces facing the gap between the shaft and sleeve. On the ring shaped thrust plate supported by the shaft, the traditional upward thrust bearing defined between the lower face of the thrust plate and the facing surface of the sleeve is maintained; but no grooves are on the surface of the thrust plate distant from the shaft and a facing counterplate surface. Further, the journal bearing is defined to have an asymmetry so that a bias force pressure along the surface of the shaft toward the thrust plate is established. The combination of the journal groove asymmetry pumping action toward the shoulder or thrust plate, together with the single grooved thrust bearing, is sufficient to establish a constant pressure between the distal surface of the thrust plate and the facing counterplate, as well as between the groove thrust plate and the facing shoulder surface.

Abstract translation: 典型的动态轴承设计包括安装在轴的端部或附近的环形或圆形推力板，轴与周围的套筒一起定义轴颈轴承，通过仅在面对轴之间的间隙的两个表面中的一个表面上提供凹槽 和袖子。 在由轴支撑的环形止推板上，保持推力板的下表面和套筒的相对表面之间限定的传统向上推力轴承; 但是推力板的表面上没有凹槽远离轴和面对的对板表面。 此外，轴颈轴承被限定为具有不对称性，使得沿着轴的表面朝推力板的偏压力建立。 轴颈凹槽不对称泵送作用朝向肩部或推力板与单槽推力轴承的组合足以在推力板的远端表面和面向对置板之间以及在凹槽之间建立恒定的压力 推力板和面对的肩部表面。