BEARING SYSTEM FOR THE ROTARY COLUMN OF A PET PREFORM BLOW MOLDING MACHINE

摘要

Bearing system of the rotary column for a PET preform blow molding machine comprising a geared bearing (1), preferably hybrid, with steel races and ceramic rolling elements, a bottom ring (2) of which rests on a ring (3), which has recesses (4) on its lower surface in the shape of a sphere fraction, where the balls (5) are positioned, wherein the radius of the recesses (4) corresponds to the radius of the balls (5), which rest in the recesses (6) in the shape of a sphere fraction and radius corresponding to the radius of the balls (5), made in blocks (7), the bottom surfaces of which are associated (cooperate) with the surfaces of the elements (8) adapted for adjustment of the position of the balls (5).