DOUBLE-ROW ANGULAR-CONTACT BEARING FOR RAILWAY BOX Russian patent published in 2009 - IPC F16C19/22 F16C19/34 F16C33/36 F16C33/56 F16C33/62 B61F15/12 

FIELD: mechanical engineering.

SUBSTANCE: double-row angular-contact bearing for railroad box contains external ring, internal rings and located between them conical rolling bodies, held by separator. Rings are manufactures from high-strength steel "ЭИ347ШД (8Х4В9Ф2-ШД)". Rollers are manufactured from roller-bearing steel "ШХ15СГШ". On races of rings it is applied wear-resistant antifriction diamondlike coating. Separator is manufactured from reinforced, strengthened polymer with solid lubrications. On butts of bearing there are installed sealing rings, which are in contact to spacing washers, herewith on working surfaces of spacing washers it is applied solid antifriction coating HRC from 85 up to 95 units. At external ring it is implemented groove and in it not less than three drain ports.

EFFECT: increasing of durability of bearing assemblies, reduction of heat generation from friction, protection of inner cavity of bearing assembly, pressure balance inside the box unit with atmospheric.

2 cl, 1 dwg