Patent application number | Description | Published |
20080203838 | Dynamic Bearing Device - A dynamic pressure generation portion is formed on the outer circumferential surface | 08-28-2008 |
20090190869 | FLUID DYNAMIC BEARING DEVICE - The fluid dynamic bearing device includes a housing, two bearing sleeves fixed to the housing at positions axially spaced apart from each other, and a shaft member inserted along inner peripheries of the bearing sleeves. The housing includes a spacer portion protruding further radially inwardly than inner peripheral surfaces to which the bearing sleeves are fixed. An axial fluid path is formed in the spacer portion, and the axial fluid path communicates to flow paths formed by axial grooves of the bearing sleeves. | 07-30-2009 |
20090279817 | FLUID DYNAMIC BEARING APPARATUS - A fluid dynamic bearing apparatus having an increased a value of tolerance for a moment load is provided. | 11-12-2009 |
20090279819 | FLUID DYNAMIC BEARING DEVICE - To achieve an increase in bearing stiffness and cost reduction, an oil film is formed in a radial bearing clearance of a first radial bearing portion (R | 11-12-2009 |
20090297078 | FLUID BEARING DEVICE - [Problems] Provided is a fluid bearing device in which bearing sleeves are positioned and fixed with respect to a housing with high accuracy. | 12-03-2009 |
20100002966 | FLUID DYNAMIC BEARING DEVICE AND PROCESS FOR MANUFACTURING THE SAME - Fixation strength of a bearing sleeve with respect to a housing is increased so that stable bearing performance can be achieved. A fluid dynamic bearing device ( | 01-07-2010 |
20100034494 | FLUID DYNAMIC BEARING DEVICE - Peeling-off of an oil-repellent film can be reliably prevented. A fluid dynamic bearing device ( | 02-11-2010 |
20100132197 | METHOD FOR MANUFACTURING FLUID DYNAMIC BEARING DEVICE - Easy and precise setting of a predetermined thrust bearing gap is made possible. | 06-03-2010 |
20100166345 | FLUID DYNAMIC BEARING DEVICE - A protrusion ( | 07-01-2010 |
20110019948 | FLUID DYNAMIC BEARING DEVICE, AND MANUFACTURING METHOD OF BEARING MEMBER - A molding pin ( | 01-27-2011 |
20120133226 | SLIDE BEARING, SLIDE BEARING UNIT WITH SAME, AND MOTOR WITH THE BEARING UNIT - Provided is a bearing capable of satisfying demands for cost reduction and further quietness, and stably maintaining high support accuracy. A sliding bearing ( | 05-31-2012 |
20120243813 | FLUID DYNAMIC BEARING DEVICE - Provided is a fluid dynamic bearing device which has excellent moment rigidity and an improved working efficiency in assembling and parts control, and in which a bearing sleeve can be easily manufactured. A plurality of bearing sleeves are axially disposed in the fluid dynamic bearing device. The bearing sleeves ( | 09-27-2012 |
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 |
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 |
20140270606 | SLIDE BEARING, SLIDE BEARING UNIT WITH SAME, AND MOTOR WITH THE BEARING UNIT - A bearing capable of satisfying demands for cost reduction and further quietness, and stably maintaining high support accuracy. A sliding bearing ( | 09-18-2014 |