Patent application number | Description | Published |
20090008892 | SURFACE HARDENED SPHERICAL PLAIN BEARING - A spherical plain bearing for a heavy haul truck strut includes an outer ring and an inner ring. The outer ring includes an outer ring core disposed between a concave spherical first bearing surface and an exterior mounting surface. The inner ring includes an inner ring core disposed between a convex spherical second bearing surface and an interior surface. The inner ring is disposed within the outer ring with the first bearing surface engaging the second bearing surface. At least a portion of at least one of the first bearing surface, the second bearing surface, the exterior mounting surface and the interior surface has a hardness greater than that of at least one of the outer ring core and the inner ring core, for providing wear and impact resistance. | 01-08-2009 |
20090010580 | SPHERICAL PLAIN BEARING WITH SPREAD SEALING MEANS - A spherical plain bearing having dual sealing capability includes an outer race bearing member having an outer ring and an inner race bearing member having an inner ring, the inner ring being located within an opening defined by the outer ring. The opening is defined in part by two generally opposed peripheral edges with a spherical concave bearing surface extending therebetween. The inner ring defines a bore extending therethrough and a spherical convex bearing surface engagable with the concave bearing surface defined by the outer ring. A first ring seal is positioned in a first seal groove defined by the outer ring and is inboard of a first face surface defined by the outer ring. The outer and inner rings, or at least portions thereof, are heat treated using one of carburizing, nitriding, or nitrocarburizing. | 01-08-2009 |
20090160151 | A-ARM FRAME WITH BEARING FOR HAULING DEVICES - An A-arm frame | 06-25-2009 |
20090252443 | SPHERICAL BEARING FOR A STEERING JOINT - A spherical bearing including a ball having an external surface defined by an outside diameter of said ball and an outer race having an inside surface contoured to a shape defined by said external surface of the ball. The inside surface extends between a stud end and a cover end of the outer race. The ball is moveably positioned within the outer race such that the inside surface and the external surface slidably engage one another. The inside surface includes at least one lubrication groove formed therein. The lubrication groove initiates at a first position adjacent to the cover end and terminates at a second position adjacent to the cover end. Remaining portions of the lubrication groove are spaced apart from the stud end. | 10-08-2009 |
20130142463 | SPHERICAL PLAIN BEARING WITH LUBRICATION GROOVE - A spherical bearing has an outer ring with a concave bearing surface and an inner ring having a convex bearing surface, which is in sliding engagement with the concave bearing surface. A lubrication groove is formed in the convex bearing surface and/or the concave bearing surface. The lubrication groove is defined by a concave central portion and by convex side portions. The concave central portion has a first radius of curvature and the convex side portions have a second radius of curvature. The second radius of curvature is at least 0.7 times the first radius of curvature. | 06-06-2013 |