Patent application number | Description | Published |
20100034493 | Fluid bearing device - Provided is a fluid bearing device in which run-out of another member fixed to a shaft member is suppressed. At one end of a shaft member ( | 02-11-2010 |
20100239196 | FLUID DYNAMIC BEARING DEVICE - A lid member ( | 09-23-2010 |
20110097025 | FLUID DYNAMIC BEARING DEVICE - In order to improve retention strength of a lid member without increase in size and reduction in bearing property of a bearing device, a fluid dynamic bearing device ( | 04-28-2011 |
20150043844 | SINTERED METAL BEARING - Provided is a sintered metal bearing, which is formed of raw material powder containing copper-based powder and iron-based powder as main components, the sintered metal bearing including a radial bearing surface along an inner periphery thereof. The copper-based powder includes fine copper powder exhibiting a particle size distribution in which a ratio of particles with a diameter of less than 45 μm is 80 wt % or more, the fine copper powder occupying one-third or more of a whole of the copper-based powder in terms of a weight ratio. A compressed body formed by compressing the raw material powder is sintered at 900° C. or more to 1,000° C. or less. | 02-12-2015 |
20150147010 | FLUID DYNAMIC BEARING DEVICE AND MOTOR WITH SAME - A fluid dynamic bearing device ( | 05-28-2015 |
20150233417 | FLUID DYNAMIC BEARING DEVICE AND MOTOR WITH SAME - A fluid dynamic bearing device including: a bearing sleeve fixed to an inner periphery of a housing; a shaft member removably inserted along an inner periphery of the bearing sleeve; an annular member having an inner peripheral surface for defining a radial gap together with an outer peripheral surface of the shaft member; and radial bearing portions and a thrust bearing portion for supporting the shaft member. At least the radial bearing gap at each of the radial bearing portions, and a bottom gap having the thrust bearing portion received therein are filled with lubricating oil. A void section is formed in an interior space of the housing. Assuming that d | 08-20-2015 |
20160040712 | FLUID DYNAMIC BEARING DEVICE AND MOTOR PROVIDED WITH SAME - Provided is a fluid dynamic bearing device ( | 02-11-2016 |
Patent application number | Description | Published |
20090016655 | Fluid Dynamic Bearing Device - A fluid dynamic bearing device in which leakage of a lubricating oil can be prevented is provided at low costs. | 01-15-2009 |
20100189383 | FLUID DYNAMIC BEARING DEVICE AND ASSEMBLING METHOD THEREOF - A first axial gap (L | 07-29-2010 |
20100226601 | FLUID DYNAMIC BEARING DEVICE | 09-09-2010 |
20120294556 | FLUID DYNAMIC BEARING DEVICE - A fluid dynamic bearing device | 11-22-2012 |
20120315169 | FLUID DYNAMIC BEARING DEVICE AND ASSEMBLY METHOD FOR SAME - Providing a fluid dynamic bearing device, wherein the outer member comprises a member formed by a pressing process on a plate member, the radial bearing surface and at least the one of the thrust bearing surfaces of the outer member being formed by the pressing process, and wherein at least a part of the inner member, which forms the radial bearing surface and the thrust bearing surfaces of the inner member, is made of a sintered metal. | 12-13-2012 |
20130283619 | METHOD FOR PRODUCING A HOUSING FOR A FLUID BEARING APPARATUS - A method for producing a housing for a hydrodynamic bearing apparatus includes forming a housing | 10-31-2013 |
20130336604 | FLUID DYNAMIC BEARING DEVICE - An inner peripheral surface and a lower end surface of a bearing sleeve made of a sintered metal are each formed into a smooth cylindrical surface or a flat surface that does not have a dynamic pressure generating portion. Thus, a step of forming the dynamic pressure generating portion can be omitted from a manufacturing step of the bearing sleeve, and cost of dies can be markedly reduced. Further, the inner peripheral surface of the bearing sleeve is formed into the smooth cylindrical surface, and hence a radial dynamic pressure generating portion is formed on an outer peripheral surface of a shaft member. However, the outer peripheral surface of the shaft portion is accessible to tools, and hence the radial dynamic pressure generating portion can be formed easily with high accuracy. As a result, accuracy of a radial bearing gap is enhanced so that a bearing rigidity is enhanced. | 12-19-2013 |
20140050427 | FLUID DYNAMIC BEARING DEVICE - A fluid dynamic bearing device ( | 02-20-2014 |
20140126846 | FLUID DYNAMIC BEARING DEVICE - A shaft side sealing surface ( | 05-08-2014 |