Class / Patent application number | Description | Number of patent applications / Date published |
384101000 | With antifriction bearing | 7 |
20110052109 | HYDROSTATIC AUXILIARY BEARING FOR A TURBOMACHINE - A system for supporting a rotating shaft, including a primary bearing configured to maintain the shaft within a predetermined range of operational shaft positions; a process fluid source; and a hydrostatic auxiliary bearing having an inner surface manufactured from a self lubricating composite material. The hydrostatic auxiliary bearing is fluidically coupled to the process fluid source and configured to use a pressurized process fluid provided by the process fluid source to maintain the shaft within the predetermined range of operational shaft positions when the primary bearing fails to maintain the shaft within the predetermined range of operational shaft positions when the primary bearing fails. | 03-03-2011 |
20130336603 | SPINDLE UNIT - A spindle unit includes: a main spindle that holds a rotary tool, and that is rotated; bearings by which the main spindle is rotatably supported; and a damper bearing by which the main spindle is rotatably supported, and that has a damping coefficient larger than damping coefficients of the bearings. The damping coefficient of the damper bearing is set to a value within a range from 10,000 to 1,000,000 N·s/m. | 12-19-2013 |
20140056547 | ROLLING BEARING - A rolling bearing includes an inner ring, an outer rind and a plurality of rolling elements. Multiple dynamic pressure generating grooves are formed in at least one of an inner ring raceway surface and an outer ring raceway surface so as to be arranged at equal intervals in the circumferential direction. The number of the dynamic pressure generating grooves and the number of the rolling elements are set so as to establish a relationship expressed by A=[{n+(n+1)}/2]·Z, where A is the number of the dynamic pressure generating grooves, Z is the number of the rolling elements, and n is a natural number (1, 2, 3 . . . ) | 02-27-2014 |
20140286599 | AIR BEARING FOR USE AS SEAL - In order to effect a seal a porous material which comprises one side of two opposing surfaces is used to restrict and evenly distribute externally pressurized gas, liquid, steam, etc. between the two surfaces, exerting a force which is opposite the forces from pressure differences or springs trying to close the two faces together and so may create a non-contact seal that is more stable and reliable than hydrodynamic seals currently in use. A non-contact bearing is also disclosed having opposing surfaces with relative motion and one surface issuing higher than ambient pressure through a porous restriction, wherein the porous restriction is part of a monolithic porous body, or a porous layer, attached to lands containing a labyrinth, the porous restriction and lands configured to not distort more than 10% of a gap created from differential pressure between each side of the porous restriction. | 09-25-2014 |
20140301680 | Planetary-Type Auxiliary Bearing for a Hydrostatic Primary Bearing - A rotor system for a rotating machine, including a rotating shaft, an auxiliary bearing, and a primary bearing configured to provide a bearing and seal combination. The auxiliary bearing may include a support structure extending around a circumference of the rotating shaft, such that an annular gap is defined between the support structure and the rotating shaft when the primary bearing supports the rotating shaft. The auxiliary bearing may also include a first pedestal extending radially-inward from the support structure, and first and second beams extending from opposite sides of the first pedestal in a plane perpendicular to an axis of the shaft. The auxiliary bearing may further include a first roller operatively coupled to the first beam, and a second roller operatively coupled to the second beam, such that the first and second rollers are configured to engage the shaft. | 10-09-2014 |
20140314349 | Electric Motor - An electric motor includes an armature shaft which is mounted in at least one floating bearing. The floating bearing comprises a bearing inner ring, which is positioned on the armature shaft, a bearing outer ring, which is received in a bearing seat, and a fluid pump for a vehicle fluid system having the electric motor. Lubricant disposed between the armature shaft and the bearing inner ring forms a hydrodynamic lubricant film and generates a constant relative movement between the armature shaft and the bearing inner ring. | 10-23-2014 |
384102000 | Backup | 1 |
20160076588 | IMPACT RESISTANT HIGH SPEED BEARING - A bearing arrangement including a first bearing assembly and a shaft supported by the first bearing assembly in a first operating mode is provided. The bearing arrangement includes a second bearing assembly including a second bearing radially inner ring defining a radially inner raceway, a second bearing radially outer ring defining a radially outer raceway, and a second bearing plurality of rolling elements supported to run on the radially inner raceway and the radially outer raceway. The second plurality of rolling elements are formed from a nickel titanium alloy, and a radially inner surface of the second bearing radially inner ring supports the shaft in a second operating mode. | 03-17-2016 |