MILL ROLL LIQUID FRICTION BEARING TRUNNION BUSH Russian patent published in 2017 - IPC B21B31/07 

FIELD: metallurgy.

SUBSTANCE: liquid friction bearing trunnion bush for the mill roll contains the cylindrical outer surface and the coaxial to it inner surface, pressed fit on the conical outer surface of the roll neck and having the difference in the outer diameter and the maximum diameter of the inner surface in the range from 10 mm up to 0.024d_s+14.5 mm. The liner bush is rigidly mounted in the cushion and encloses the trunnion bush along the entire length of the bearing with some clearance. The inner surface of the trunnion bush has the parabolic curve described profile, curved to the part axis, regulated by the mathematical dependence, taking into account the conicity of the roll neck.

EFFECT: bearings rigidity increase, accuracy of rolling and quality of the rolled metal.

4 dwg