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| Number | Title | Issue Date |
| 7316436 | Differential wheel mounting for railroad car A differential wheel mounting for replacing a standard railroad axle assembly having a wheel seat portion which includes a sleeve having several sliding surfaces fixedly mounted over the wheel seat portion of the axle, a railroad wheel with a running surface for con... | 01/08/2008 |
| 6880469 | Journal bearing for trolley wheel A trolley wheel assembly includes a wheel portion rotatably positioned around a hub portion and at least one sliding member positioned between the wheel portion and the hub portion. The sliding member defines a mating surface for mating with a generally correspondin... | 04/19/2005 |
| 4101180 | Roller assembly A roller assembly for use on a conveyor chain to provide rolling support for the working run thereof includes a roller journaled on a mounting bushing and held thereon from axial displacement by a double sealing ring arrangement at each roller end face. T... | 07/18/1978 |
| 4010972 | Axles resiliently mounting wheels A wheel set for a bogie of a track vehicle in which wheels are mounted non-rotatably on an axle mounted in bearings of the bogie. Substantially wide rubber elastic inserts for springing each of the wheels, have an arched axial-radial cross-section. The he... | 03/08/1977 |
