Patent application number | Description | Published |
20080309183 | Dynamic Bearing Device - Disclosed is a dynamic bearing device which allows production of a smaller housing at low cost and which suppresses ion elution from the resin portion to thereby maintain cleanliness in the dynamic bearing device and exert a desired bearing performance. A dynamic bearing device | 12-18-2008 |
20090206708 | FLUID DYNAMIC BEARING APPARATUS AND MOTOR COMPRISING THE SAME - A fluid dynamic bearing apparatus with an increased adhesive strength between a component having an adhesion fixing face and a bracket is provided by appropriately controlling the adhesion gap. | 08-20-2009 |
20090245709 | PORE-SEALING AGENT, MEMBER FOR COATING SPRAY DEPOSIT, AND BEANING - The present invention provides a pore-sealing agent and a member of coating a spray deposit. The pore-sealing agent is excellent in permeability into pores (gaps) of a spray deposit and can be favorably filled thereinto and is capable of sealing pores until a state in which gaps in a spray deposit material are substantially entirely filled is obtained. The pore-sealing agent contains an epoxy group-containing component and a hardener and does not contain a polymerizable vinyl group-containing solvent. The epoxy group-containing component is a mixture containing a polyglycidyl ether compound in which the number of epoxy groups contained in one molecule is not less than three as an essential component thereof and in addition, an alkylenediglycidyl ether compound or a cyclic aliphatic diepoxy compound, both of which contain two epoxy groups in one molecule thereof. Excluding the hardener, the mixing ratio of the polyglycidyl ether compound to the epoxy group-containing component of the mixture is 10 to 95 wt %. | 10-01-2009 |
20090297076 | FLUID DYNAMIC BEARING DEVICE - A hub portion of a fluid dynamic bearing device is formed from a resin composition in which polyphenylene sulfide (PPS) is employed as a base resin and with which carbon fibers are mixed. In this manner, the wear resistance and the conductivity can be improved. Alternatively, both portions of a stationary body and a rotating body of the fluid dynamic bearing device which portions face to each other through a bearing gap are formed from a resin composition in which polyphenylene sulfide (PPS) is employed as the base resin. In this manner, excellent wear resistance can be obtained. | 12-03-2009 |
20100316315 | MEMBER FOR ROLLING BEARING AND ROLLING BEARING - The present invention provides a member for a rolling bearing ( | 12-16-2010 |
20110142387 | SINTERED BEARING AND MANUFACTURING METHOD FOR THE SAME - Impregnation of a resin into a sintered body ( | 06-16-2011 |
Patent application number | Description | Published |
20090302697 | HOUSING FOR FLUID DYNAMIC BEARING DEVICE - Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time. | 12-10-2009 |
20100061669 | HOUSING FOR FLUID LUBRICATION BEARING APPARATUSES - A housing for fluid lubrication bearing apparatuses having improved adhesiveness with other components is provided at low costs. | 03-11-2010 |
20120126443 | HOUSING FOR FLUID DYNAMIC BEARING DEVICE - Provided is a housing for a resin fluid dynamic bearing device in which deterioration with time of a fixing force for another member is mitigated and which can maintain a high bearing performance for a long period of time. The housing formed of a resin composition exhibiting a compression creep amount of 8% or less when a compressive pressure of 80 MPa is applied for 168 hours at an atmosphere temperature of 80° C., provides a sufficient fixing force for the another member fixed with a press-fitting force, for example, a bearing sleeve press-fitted into an inner periphery of the housing even after a long term use. Thus, there is no fear of fixing positions of the another member with respect to the housing being deviated and a high bearing performance is maintained for a long period of time. | 05-24-2012 |
20120175984 | DYNAMIC BEARING DEVICE - Disclosed is a dynamic bearing device which allows production of a smaller housing at low cost and which suppresses ion elution from the resin portion to thereby maintain cleanliness in the dynamic bearing device and exert a desired bearing performance. A dynamic bearing device | 07-12-2012 |
20150007937 | FLUID DYNAMIC BEARING APPARATUS AND MOTOR COMPRISING THE SAME - A fluid dynamic bearing apparatus with an increased adhesive strength between a component having an adhesion fixing face and a bracket is provided by appropriately controlling the adhesion gap. Materials for a bracket and a housing are selected so that the value obtained by dividing the linear expansion coefficient of the housing fixed to the inner periphery of the bracket by the linear expansion coefficient of the bracket having a portion for mounting a stator coil of a motor is not lower than 0.5 but not higher than 2.0. An adhesion fixing face formed on the outer periphery of the housing is adhesively fixed to the inner circumferential surface of the bracket with an anaerobic adhesive or an epoxy-based adhesive. | 01-08-2015 |