MINING MACHINE CRAWLER BOGIE Russian patent published in 1995 - IPC

FIELD: mining engineering. SUBSTANCE: mining machine crawler bogie has axle-mounted road wheels 4 with bearing units consisting of axle 5, bearings 6, spacer bushings 7 and sealing arrangements fitted at road wheel bore axis at each side and locked by retaining rings 8. Novelty is that sealing arrangements are made in form of pack seals 9, each containing C-shaped dust shields assembled in pairs and pointed with their sealing edges in opposite sides and made, for instance, of polyamide. Sealing arrangements have also cups with sealing cord arranged on outer diameter of cups in plane of symmetry of pack. They are placed in common housing 15. EFFECT: enlarged operating capabilities. 3 dwg