FIELD: machine building.
SUBSTANCE: attachment system of a roll bearing includes a bearing assembly with a roll trunnion installed in it in the trunnion bearing and being engaged with thread made on trunnion (1) of the roll or on tightening pin (5) fixed in it and threaded nut (9) fixing the bearing assembly on the roll trunnion on threaded nut (9) there formed is movable partial section (9a) with a bend, which has the possibility of being moved, and namely bent relative to the rest part (9b) of threaded nut (9) to the position creating contact stress (15b, 16b) in adjacent thread, which acts opposite to the rest threaded engagement of threaded nut (9a).
EFFECT: creation of a decision that improves protection against being rotated owing to self-breaking of a threaded but retaining a bearing of a roll trunnion.
10 cl, 3 dwg
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