PURPOSE: To reduce the number of parts, to better assembly workability and to improve reliability by forming a bearing holder and a stator core from a core member formed into an integral body through a sintered powder metallurgy and provided with a bearing fitting part and by impregnating said core member with a lubricating oil.
CONSTITUTION: A core member 22 is provided with a shape, where a bearing holder and a stator core are molded into an integral body by a sintered powder metallurgy, while forming a bearing fitting part 23, said bearing holder part 24 and stator core part 25 so that a work for fitting said bearing holder with said stator core becomes useless to improve workability. Further, because the stator core part 25 of said core member 22 is also impregnated with a lubricating oil, it is possible to increase the oil-holding quantity of an apparatus and to lengthen the life thereof. Thus, because it is unnecessary to provide the bearing holder and stator core separately and to fit them together, the number of parts decreases and the workability becomes better.
| JP2021001629 | BEARING MEMBER AND FLUID DYNAMIC PRESSURE BEARING DEVICE INCLUDING THE SAME |
| WO/2004/048162 | ACTUATING DEVICE PROVIDED WITH A SLIDER BEARING |
| WO/1990/015264 | SLIDING BEARING |
TODA KOJI
SHINODA YUKIO
KURA RYUZO
Next Patent: FIELD MAGNET OF OUTER-ROTOR ELECTRIC ROTATING MACHINE