DEVICE FOR STATIC PULSE FLARING OF BALL BEARING OUTER RACE INNER WAY Russian patent published in 2013 - IPC B24B39/02 B21H1/12 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to flaring of ball bearing outer race. Expander including mandrel and deforming elements is fed by static load hydraulic cylinder and intermittent pulse load hydraulic cylinder in lengthwise direction, said intermittent pulse load hydraulic cylinder including head and wave guide. Expander mandrel is arranged at intermittent pulse load hydraulic cylinder wave guide. Deforming elements represent balls in quantity of, at least, not smaller than that of balls in bearing for which said race is made and with diameter d_III not exceeding that of bearing ball. Said forming elements are fitted in front blind radial holes of the mandrel. Similar blind radial holes are made behind mandrel working part. Said front and rear holes are connected via grooves. Said grooves have lengthwise variable-depth sections and equal-depth sections inclined to lengthwise axis.

EFFECT: expanded machining performances, increased depth of hardened layer and decreased roughness.

12 dwg, 1 ex