REPAIR METHOD OF AXLE BOX TAPERED ROLLER CASE BEARING Russian patent published in 2024 - IPC F16C43/00 F16C19/38 F16C33/80 

FIELD: machine building.

SUBSTANCE: group of inventions relates to machine building, in particular to methods of repair of axle box double-row tapered roller case bearing. Method comprises the following stages: input control of the bearing assembly; disassembly of the bearing, including disposal of the seal; cleaning of bearing parts; visual and geometrical control of cleaned parts; sorting and assembly of bearing with replacement of required parts of bearing. Stage of visual and geometrical control includes measuring operations for determination of variability of outer diameter in a single plane on the outer diameter of the outer ring and on the diameter of the seat of the seal. Bearing outer ring is allowed to next stage of repair method, if deviation from variability of outer diameter in single plane along outer diameter does not exceed 48 mcm, and deviation from variability of outer diameter in single plane along diameter of seat for seal does not exceed 55 mcm. Bearing comprises metal-elastomer seals of contact-labyrinth type. Outer ring thickness is in range from 6 to 8 mm.

EFFECT: higher number of bearing parts allowed for repair.

10 cl, 4 dwg, 2 tbl