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| Number | Title | Issue Date |
| 4997324 | Spindle structure for machine tool A spindle structure for a machine tool such as a boring machine, for example, includes a rotatable tubular shaft to be coupled to a rotative drive source, and a spindle axially slidably disposed in the tubular shaft and rotatable in unison with the tubula... | 03/05/1991 |
| 4972764 | Combination of sliding members In a combination of sliding members which are suitable for use in the compressor for an automotive air conditioner, one of the members consists of an aluminum alloy which contains silicone particles consisting solely of eutectic silicon; and the other sli... | 11/27/1990 |
| 4955244 | Operating apparatus for clean room An operating apparatus includes a ball screw apparatus having a nut secured to a table which is fixed on sliders of a linear guide apparatus. The nut is engaged with a screw shaft and, when the screw shaft is rotated by a driving motor, the table having a... | 09/11/1990 |
| 4935388 | Rolling contact bearings, material for bearing surfaces, and process therefor The reliability of silicon nitride bodies for use in bearings can be greatly improved by control of microstructural flaws which produce bright specular reflections when metallographically prepared surfaces of the composites are examined microscopically in... | 06/19/1990 |
| 4930909 | Rolling bearing A rolling bearing having an inner ring, outer ring and rolling element, at least one of these elements being made of one of the following first, second or third medium-carbon manganese steels. The first medium-carbon manganese steel includes C: 0.4 to 0.7... | 06/05/1990 |
| 4900639 | Cladding of bearing metal and process for production thereof Leakproof, adhesive, non-lamellar and pore-free antifriction coatings can be produced from essentially oxidation-sensitive dispersion alloys, with at least two metallic alloy components forming a miscibility gap in the solid state, by means of vacuum plas... | 02/13/1990 |
| 4896975 | Ceramic air bearing shaft A ceramic shaft machinery element having an incorporated cooled bearing runner surface providing superior support for the ceramic shaft.... | 01/30/1990 |
| 4889435 | Bearings having upper and lower halves of different materials Journal bearings comprising two half bearings are described. Only one half bearing, in the highest loaded position, has an overlay coating. Preferably the non-overlay coated half comprises a silicon containing aluminum alloy which exerts a polishing actio... | 12/26/1989 |
| 4848934 | Lightweight high performance titanium sliding contact bearing A combination of a sliding-contact race (12) and bearing (10) in which a generally ring-shaped race member (12) and a generally ring-shaped bearing member (10) are fitted for relative sliding-rotation, the bearing member being within the race member. One ... | 07/18/1989 |
| 4836695 | Composite sliding surface bearing A composite sliding surface bearing consisting of a backing layer of steel, a bearing alloy layer which consists of aluminum and has been applied to said backing layer, and a sliding surface layer which consists of zinc phosphate and has been deposited on... | 06/06/1989 |
| 4799810 | Very high speed marginally lubricated ball thrust bearing A ball thrust antifriction bearing for operation at very high speed in the DN number range from 5×105 to 2×106 and higher while only marginally lubricated by a mist of liquid having comparatively poor lubricating qualities which is... | 01/24/1989 |
| 4797011 | Solid lubricant bearing A solid lubricant bearing comprises plural rollers disposed in a line or in a circle, plural solid lubricant elements at least one thereof contacting one of the rollers beings pressed by springs on the rollers, and a guiding base for receiving the rollers... | 01/10/1989 |
| 4769210 | Apparatus for use in liquid alkali environment Apparatus such as a nuclear fuel sub-assembly for use in a liquid alkali metal environment has bearing surfaces (4) coated with alumina or aluminide particles to reduce wear, fretting and friction. The particles are deposited by plasma or detonation gun u... | 09/06/1988 |
| 4767677 | Multi-layer cylindrical bearing A multi-layer cylindrical bearing comprises an outer, backing layer (1a) of stainless steel, an intermediate layer (1b) of porous copper alloy formed by sintering copper alloy, and an inner, bearing layer (1c) of synthetic resin formed by impregnating and... | 08/30/1988 |
| 4759644 | Gas bearing body The invention relates to a journal gas bearing body which is formed with a cylindrical bore to rotatably support therein the journal part of a shaft and gas introducing holes radially opening into the cylindrical bore. The bearing body is made of a metal,... | 07/26/1988 |
| 4754494 | Beryllium based, wear-resistant material for bearings and the like A gas bearing and bearing surfaces capable of operating in an unlubricated configuration and providing reliable wear-resistant, start/stop cycling. The bearing typically comprises opposed surfaces of the same or different materials. A first surface is typ... | 06/28/1988 |
| 4732047 | Structure of a shoe for a swash plate type compressor A shoe incorporated into a swash plate type compressor as a drive force transmitting element intervened between a rotatable swash plate and a reciprocal piston has a first member made of a seizure-resistant material such as ceramic and hard metal, and has... | 03/22/1988 |
| 4666792 | Material for use in the manufacture of composite bearings for crankshafts A composite bearing material for use in the manufacture of crankshaft bearings comprises a steel strip, which is provided on one side, which is to be used disposed on the outside of the bearing, with an elastic layer, and on the other side, which is to be... | 05/19/1987 |
| 4666318 | Self-lubricating bearings A bearing, such as a plain spherical self-aligning bearing, has a reinforced low-friction woven plastics element (for example comprising ptfe) which is in sliding contact with a very hard, very smooth counterface. The bearing exhibits reduced wear when su... | 05/19/1987 |
| 4657455 | Concrete machine tools A process for constructing machine tools. The process includes constructing a form, pouring concrete into the form, allowing the concrete to set, and grinding the sliding surfaces to be properly aligned and precision surfaces. Also disclosed are machine t... | 04/14/1987 |
| 4641976 | Copper-based spinodal alloy bearings This invention relates to the use of spinodal alloys consisting essentially of copper-nickel-tin for bearing surfaces formed between roller cutter cones of sealed bearing rock bits.... | 02/10/1987 |
| 4470184 | Bearing of an internal combustion engine and process for producing the same A bearing to be used in an internal combustion engine, comprises a base and an overlay layer formed on said base. The overlay layer comprises an alloy layer consisting of from 5 to 20%, preferably from 10 to 14%, of Sn, from 0.05 to 10%, preferably from 0... | 09/11/1984 |
| 4452866 | Aluminum-based alloy bearing A tin-containing aluminum alloy is usually pressure-welded to a backing steel plate and used as a bearing. This bearing, however, is defective in that aluminum crystal grains and tin precipitates are coarsened in the alloy structure and the high temperatu... | 06/05/1984 |
| 4404263 | Laminated bearing material and process for making the same Laminated anti-friction bearing material and process for producing the same. Heterogeneous wire, containing both metallic and non-metallic elements or components, is atomized by an electric current impulse discharge which causes an explosive or sputtering... | 09/13/1983 |
| 4397910 | Light weight high temperature polyester laminates useful as lubricating rub strips A light weight, high temperature, laminate is made of a plurality of heat and pressure consolidated porous, interlocked, needle-punched, polyethylene terephthalate continuous filament mats, impregnated with a thermoset resin to a treated ratio of from abo... | 08/09/1983 |
| 4334926 | Bearing material A bearing material which is excellent in seizure resistance, wear resistance and conformability. The bearing material is prepared by sintering, on a backing steel sheet, a powder mixture consisting of Cu-Pb base alloy powder or its constituent metal powde... | 06/15/1982 |
| 4323284 | Thrust face bearing structure for rolling cutter drill bit A rolling cutter drill bit is disclosed having an improved thrust face bearing structure which utilizes alternating segments of at least two different bearing metals. The composite thrust face bearing structure disclosed has a first metal selected for a l... | 04/06/1982 |
| 4227756 | High temperature low friction surface coating A high temperature, low friction, flexible coating for metal surfaces which are subject to rubbing contact includes a mixture of three parts graphite and one part cadmium oxide, ball milled in water for four hours, then mixed with thirty percent by weight... | 10/14/1980 |
| 4204886 | Method for improving and article having improved wear resistance A method of improving resistance of ferrous parts to wear failure such as galling and seizure, and parts having such increased resistance are disclosed. The invention includes a two step process wherein the part is first nitrided to provide a nitride case... | 05/27/1980 |
| 4169637 | Drill bushings, pump seals and similar articles A drill bushing or similar article, such as a pump seal, having a hardened body of steel and a thin coating of tungsten carbide distributed throughout a matrix of nickel chrome which provides a metallurgical bond to the steel body and a metallic bond to t... | 10/02/1979 |
| 3938868 | Bearing lubrication system A bearing construction is provided having a temperature responsive lubrication system. The invention is particularly applicable to bearings having hard, wear resistant bearing surfaces, such as ceramic surfaces, lubricated by solid lubricants placed in re... | 02/17/1976 |
| 3935797 | Wear and seizure resistant aluminum alloy piston An aluminum alloy piston for an internal combustion engine, which has been made wear and seizure resistant by forming an adherent coating on at least the skirt of said piston, by applying thereto an iron-carbon powder containing less than 0.3% by weight o... | 02/03/1976 |
