BEARING UNIT AND MOTOR

A bearing unit includes: an impregnated bearing that rotatably supports a shaft of a rotor; a storage part which is formed in a manner that an end surface of a housing incorporating the rotor in an axial direction becomes convex toward an outer side and which stores the impregnated bearing in a non-...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ILO SHINYA, SHIMIZU SATOSHI, KATSUTA YOSHINOBU
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A bearing unit includes: an impregnated bearing that rotatably supports a shaft of a rotor; a storage part which is formed in a manner that an end surface of a housing incorporating the rotor in an axial direction becomes convex toward an outer side and which stores the impregnated bearing in a non-rotatable manner; and an oil return washer which is placed to face an end surface of the impregnatedbearing stored in the storage part and which integrally rotates with the shaft. The storage part has a bottom tubular shape, and includes an inner surface and a bottom surface, and the oil return washer is placed in a manner that the facing surface overlaps with the inner surface of the storage part when viewed from a radial direction, and includes a circulation part that receives oil leaked fromthe impregnated bearing and returns the oil to the impregnated bearing. 本发明提供轴承单元以及电动机,在具备含油轴承的轴承单元中,抑制轴承油的减少。轴承单元具备:含浸轴承,其将转子的轴支承为旋转自如;收容部,其以使内置转子的壳体的轴向端面朝向外侧凸出的方式形成,且将含浸轴承以无法旋转的方式收容;以及回油垫圈,其以与收容在收容部的含浸轴承的朝向转子侧的端面对置的方式配置,且与轴