| 摘要 |
The invention concerns a ball-bearing screw (1) comprising a male part constituted by the screw (3), a plurality of balls (2) and a female assembly including a nut (4) and two flanges (5, 6), the male part and the female part threads co-operating so as to exert by their flanks (7, 11) a pressure on the balls (2). The invention is characterised in that the female assembly comprises at least two independent internal circuits (15) for recycling the balls (2) wholly or partly integrated in the nut (4) and wholly or partly in the flanges (5, 6). The flanges (5, 6) cover whole or part of the nut (4) periphery. The invention is applicable to mechanical elements with screw-nut system for ball recycling. |
