Spindle motor having a fluid dynamic bearing system and a stationary shaft,申请号US20080313901-传众专利搜索

Spindle motor having a fluid dynamic bearing system and a stationary shaft

申请公布号：US2009140588(A1)

申请号：US20080313901

申请日期：2008.11.25

申请公布日期：2009.06.04

发明人：DRAUTZ FRANK;BAUER MARTIN

分类号：H02K5/167

主分类号：H02K5/167

摘要：The invention relates to a spindle motor having a fluid dynamic bearing system that contains a rotor component taking the form of an integrated hub/bearing bush arrangement which encloses a straight, stationary shaft, which in turn is connected at both its ends to axially aligned bearing components, formed in such a way that they seal the fluid dynamic bearing system formed between the shaft and the rotor component and open at both ends. The open ends of the bearing gap are sealed by capillary seals or pumping seals or a combination of capillary and pumping seal.