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JP2004156751 |
To realize a double row conical roller bearing with an aligning mechanism capable of realizing miniaturization by increasing the rated load capacity of a conventional double row conical roller bearing with an aligning mechanism.The doubl...
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JP3558367 |
PURPOSE: To unnecessitate working accuracy and to prevent a driving system from being affected even when a sewing machine falls or hits by providing a rotation stopping means for controlling the operation of a driving shaft only in the r...
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JP2004150471 |
To provide a bearing device improved in characteristics such as oscillating accuracy, rigidity and characteristic frequency without impairing the manufacturing efficiency.In this bearing device 10 wherein two antifriction bearings 12, 13...
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JP2004137926 |
To reduce sliding loss in a hermetic compressor.A first guide part 117 whose diameter holds an axial center in common with a main bearing 115 is arranged on a flange 116 extended in the radial direction of the main spindle of the main be...
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JP2004108577 |
To provide a hydraulic pressure type damper capable of surely eliminating any plays between component members even when a spherical bearing is used on a connecting part with a building structure.In this hydraulic pressure type damper usi...
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JP2004100870 |
To provide a self-aligning type fluid dynamic-pressure bearing capable of easily securing high straightness, and achieving a long service life.This self-aligning type fluid dynamic-pressure bearing 1 to be used as connected to an externa...
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JP3538488 |
To enable it to secure the good lubricativeness of lubricating oil in the inner part of a bearing. A cage 4 is of conical ring form subjected to cutting work, and a large diametral side ring 5 and a small diametral side ring 6 are connec...
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JP3531836 |
PURPOSE: To provide a spherical bearing in which the relative turning of the inner ring to the outer ring is very smooth without producing backlash, and further its durability is very excellent, and also to provide the manufacture by whi...
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JP3529191 |
PURPOSE: To prevent the manufacturing cost of a cage from being increased, to prevent the rotation torque from being increased, and to prevent the lubrication from being deteriorated by providing a preventive structure to surely prevent ...
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JP2004069033 |
To provide a pre-loading unit for the rolling bearing equipment that can obtain the aimed loss torque of the rolling bearing and simplify the unit constitution for pre-loading, besides the pre-loading work can be made more efficient.A pr...
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JP2004059195 |
To drive a spherical body supporting an article from the spherical body side to carry it.A large main ball 2 is rotatably supported on a concave surface 10 provided in a body 4 through a number of small balls 3, and a lid part 12 to clos...
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JP2004052990 |
To provide a spherical dynamic pressure bearing having high versatility for a use and a strong bearing.This spherical dynamic pressure bearing 10 is connected to an external shaft 52 for the use. The bearing 10 is provided with a ball 11...
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JP2004044640 |
To provide a spherical support unit which can be used in a clean room or the like.In a spherical support unit having a main ball 12 rotatably supported in a spherical concave surface 19 via a mass of small balls 13 and provided with a pl...
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JP2004037171 |
To move a table precisely by structurally minimizing transmission of a mechanical movement error in a drive side to the table, in addition to improving machining precision and assembly precision of components of a table drive mechanism, ...
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JP2004028139 |
To provide a double-row tapered roller bearing with aligning ring of low cost that is usable for an automatically aligned roller bearing without using a spacer.In this double-row tapered roller bearing with an aligning ring, an outer cir...
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JP2004011738 |
To achieve a long service life by extending an actual bearing life.In this self-aligning roller bearing 30, a plurality of rollers 33 are disposed between an inner ring 31 and an outer ring 32 to be capable of rolling in circumferential ...
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JP2004011737 |
To prevent cracking of an inner ring even in an operation environment of a wind power generator or the like in which a high engagement stress is loaded, and in which oil film is not sufficiently formed in low speed rotation, and attain a...
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JP2004011318 |
To provide a base isolation system for a building structure providing a sense of security by greatly reducing strong horizontal acceleration and vertical vibration in earthquakes to minimize damage to the building itself and equipment wi...
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JP2004011892 |
To perform a high efficient work to measure end play of a reduction gear used in a rolling stock.The reduction gear 30 is situated on a table 20 with a rotary shaft 23 brought into a horizontal state, and a rotary shaft 23 is raised and ...
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JP3507765 |
To provide an oscillating mechanism allowing extremely smooth rotation and slant rotation of a head member 1 without entering dust between a bearing member 7 and a spherical surface 4. A bearing member 7 contacting the spherical surface ...
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JP3499001 |
PURPOSE: To adjust the bearing center position of a rotor of a turbine or an electric generator during running without stopping the turbine by conducting comparative calculation of property variation signals and preset value signals and ...
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JP2003343553 |
To provide a double row cone roller bearing with an aligning ring in which the bearing is freely assembled to a housing without being bound by a load range of a radial load, and at the same time, and costs are reduced. The double row con...
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JP2003343554 |
To suppress particle abrasion of a raceway face by using an automatic aligning roller bearing of an inexpensive standardized article. A cut crowning 19 making a drop amount toward both end sides of a bearing larger is applied on the oute...
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JP2003336630 |
To provide a thrust bearing structure capable of avoiding mutual contact of bearing faces without requiring a new design of load capacity.A thrust bearing 20 has: a thrust runner 21; and a pair of bearing plates 22 having counter faces 2...
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JP2003339134 |
To provide a bearing of a motor where an elastic support member is composed of a leaf spring for a thinner bracket, capable of preventing oil splash leakage under the centrifugal force of a rotating thrust washer.A spindle 4 of a motor 1...
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JP2003336631 |
To enhance a rated load and prolong a life without making a dimension of outer shape large in a self-aligning bearing in which one end of a rotation shaft thermally expanding/shrinking in an axial direction is positioned in the axial dir...
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JP2003314543 |
To provide a roller bearing with an aligning ring wherein supply of a sufficient amount of lubricant into inside a bearing is secured, while a filling slot used for easily assembling an outer ring is provided on the aligning ring.The rol...
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JP3488299 |
PURPOSE: To provide various sliding elements different from each other and used even if there is large tolerance. CONSTITUTION: A guiding device is provided to orient the relative sliding parts of a driving optical equipment, advantageou...
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JP3477835 |
PURPOSE: To prevent the occurrence of the skew of a spherical roller and to prevent the increase of rotation torque and the occurrence of seizure. CONSTITUTION: Guide surfaces 15 and 15 formed at the out flange parts 8a and 8a of holders...
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JP2003278749 |
To provide a bearing unit wherein optimization of rigidity and reduction of torque are simultaneously satisfied, while increasing speed and improving precision of control of an object to be borne.The bearing unit 1 is furnished with a sl...
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JP2003269511 |
To provide a vibration control device that can reduce manufacturing cost by abolishing cutting work on an outer ring holding portion after welding.The vibration control device couples both ends of a damping device comprising a brace 9 an...
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JP2003260780 |
To ensure movability between a position of printing operation and a position of non-printing operation, to reduce play due to a thrust load and to replace only a broken bearing means.Bearing equipment of a printing cylinder 12 makes a fr...
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JP3468575 |
PURPOSE: To reduce the number of component parts and manhours for manufacturing a slidable bushing by reducing the diameter of at least either one of opposite end parts of an outer collar after a specified shape elastic member and an inn...
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JP2003247540 |
To prevent the leakage of lubricant and improve low noise characteristics or a high speed rotating performance in a bearing having an inclining mechanism of an axis such as a spherical bearing, a rod end bearing, a roller bearing, a ball...
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JP2003229350 |
To provide a stage device and an aligner capable of suppressing deformation at assembling or deformation that accompanies the vacuum evacuation of a chamber where the stage device is disposed.The stage device comprises a spherical hydros...
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JP3462730 |
To prevent the wear or seizure of a spherical surface and to improve the durability by providing a land part oil filler port having one end connected to an oil filler port in a land part between oil feeding grooves on the spherical surfa...
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JP2003222162 |
To solve problem in which a seal member is hardly fixed into an outer ring member with a fully endurable interference to a load acting to a thrust direction while the seal member is conveyed or used, and products caused by separation of ...
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JP3459279 |
PURPOSE: To prevent early wear and noise when a device passes a door stopper rod by using a bearing forming the door stopper rod into a spherical shape and spatially and revolvably supporting the bearing by a bearing pin. CONSTITUTION: A...
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JP2003220291 |
To eliminate work requiring experience such as the correction of an inclination by inhibiting the inclination of the holding state of a bearing even in the case of pressing the bearing attached to a sewing machine main shaft by a pressur...
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JP3454156 |
To absorb the position shift of a power roller by a size tolerance and prevent the drop of a transmission torque, while using a conical roller bearing with a high durability to the support of input/output discs. This transmission is prov...
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JP3454728 |
To reduce the number of parts requiring machining accuracy so as to reduce manufacturing cost and to reduce the number of parts of steering structure by supporting a handle supporting shaft by a steering fitting member provided at a deck...
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JP3452256 |
To provide a spherical bearing preventing the relative positional relation among a retainer, a spherical tip portion, and a housing from largely changing. The spherical tip portion 2a of a rod 2 is retained by the retainer 4 via a plural...
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JP2003202015 |
To provide a roller bearing free to adjust a clearance in the radial direction or initial stress and to allow certain manoeuverability in the axial direction.A conical opening angle α of roller bodies 3, 4 is roughly as half in size as ...
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JP3450368 |
PURPOSE: To enlarge the operational range of a spring by providing a center spin having a contact surface and several arched fingers extended from the center spin and away from the contact surface. CONSTITUTION: A spring 22 incorporates ...
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JP2003194081 |
To provide a method and a device for fitting a sleeve onto a shaft, while preventing the generation of vibration of the sleeve when rotating.The tapered sleeve cooperates with a mechanical member 1 having a corresponding tapered hole, an...
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JP2003194071 |
To provide a bearing possible to be easily assembled, disassembled for exchange and to be accurately adjusted even in a case of a large-diameter bearing.This bearing is provided with at least one inner ring 1 or 2 and at least one outer ...
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JP2003172349 |
To provide an inexpensive bearing structure automatically aligning by absorbing inclination or a deviation between bearings, suppressing the leakage of air around a shaft, and having the small number of parts.A contacting surface of a be...
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JP2003166627 |
To prolong the life of a bearing and improve the efficiency of a differential gear by reducing turning torque, in a pinion shaft supporting bearing device for supporting a pinion shaft 4 constituting an automotive differential gear in a ...
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JP2003161317 |
To propose an eccentric driving shaft coupling unit capable of supporting a shaft in a freely rotatable manner in an axial direction without imposing excessive strength on the driving coupling unit even if a driving input shaft of a unit...
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JP3433925 |
To provide a spherical bearing preventing the relative positional relation among a retainer, a spherical tip portion, and a housing from largely changing. The spherical tip portion 2a of a rod 2 is retained by the retainer 4 via a plural...
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