CRAWLER VEHICLE ROAD WHEEL Russian patent published in 1999 - IPC

FIELD: transport engineering. SUBSTANCE: road wheel has roller installed on bearings on fixed axle with longitudinal flats, two of which are arranged in lower part of axle at angle of 75 degrees relative to vertical axis. Axle has inner space accommodating oil bath communicating with bearings through radial holes. Holes are made in pairs in cross planes in lower part of axle composing angle of 75 degrees with vertical axis. Screw channels are made in each bearing on its inner surface at interval of 120 degrees at pitch equal to bearing width. Screw channels are made to provide auger effect at rotation of road wheel and ensure opposite flow of lubricating material. EFFECT: reduced heat release, and wear, removal of wear products from friction zone into inner space of axle. 2 dwg