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| Number | Title | Issue Date |
| 7712221 | Method of cold-forming near net shape metal roller blanks for anti-friction bearings A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. T... | 05/11/2010 |
| 7377042 | Method of cold-forming near net shape metal roller blanks for anti-friction bearings A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. T... | 05/27/2008 |
| 7146734 | Rolling elements for rolling bearing, method of producing the same, and rolling bearing A method of producing rolling elements for a rolling bearing comprises mixing to process rounded elements made of steel balls and spherical rolling elements having outer diameter portion portion becoming a rolling contact face. The rolling contact face has curvature... | 12/12/2006 |
| 6948247 | Method for forming a bearing race for a cylindrical bearing A cylindrical roller bearing or needle roller bearing for use with a rolling raceway surface is subjected to a carbonitriding treatment to produce a layer containing 30 to 80% retained austenite in the vicinity of its surface that contacts a carburized layer of a ro... | 09/27/2005 |
| 6886986 | Nitinol ball bearing element and process for making A bearing having bearing elements made of Type 60 Nitinol made by an investment casting process for producing near net shape parts of Nitinol includes making a ceramic mold having a series of spherical cavities, pouring molten Nitinol into the mold cavities, cooling... | 05/03/2005 |
| 6318897 | Roller bearing and a method of producing the same A bearing is provided which can be sufficiently processed by a usual NC grinding machine, and attain a life period that is substantially equal to that of a bearing having a theoretical crowning shape which is derived from the elastic contact theory, even ... | 11/20/2001 |
| 6311660 | Rolling-contact cylindrical element In a case where crowning is provided on a contact surface of a tappet roller by the combination of, for example, two circular arcs, a logarithmic crowning is determined in which an edge load does not occur in the bearing pressure even if its inclination w... | 11/06/2001 |
| 6146021 | Method for making a corrosion resistant bearing A corrosion resistant bearing includes a bearing insert and a housing supporting the bearing insert. The bearing insert includes an outer ring, an inner ring and a plurality of rolling bearing elements disposed between the rings. At least one of the beari... | 11/14/2000 |
| 4946747 | Machine element and method of making Machine elements formed which overcome the problems associated with rolling bearings or rolling drive units, which, apart from load under rolling are simultaneously exposed to frictional load, which leads in particular zones to frictional wear. In order t... | 08/07/1990 |
| 4893387 | Roller elements for roller bearing A roller element for use in a roller bearing having a surface formed with minute recesses at random so that the ratio RMS(L)/RMS(C) will be not more than 0.8 wherein RMS(L) is the roughness mean square value in the longitudinal direction and RMS(C) is the... | 01/16/1990 |
| 4877340 | Process for deriving the contact geometry for raceways and rollers of a roller bearing To derive suitable contact geometry, initial contact geometries are selected somewhat arbitrarily for the cup and cone raceways and for the roller side faces. Using the initial contact geometries, the internal bearing misalignments, that is the misalignme... | 10/31/1989 |
| 4456313 | Roller bearing with specially constructed rollers Each roller in a roller bearing has varying diameters along its length. The longitudinal surface is formed along varying radii of curvature. The diameters are functions of the contact stress along the roller, the length of the roller, any angular misalign... | 06/26/1984 |
| 4108689 | Process for improving the surfaces of roller bodies and balls The surfaces of antifriction elements and other steel surfaces in mutual sliding contact are improved by first degreasing the surfaces in a mild alkaline aqueous degreasing bath at a pH of about 7 to 10, by then rinsing with cold water, by browning the su... | 08/22/1978 |