FIELD: ball bearing nuts.
SUBSTANCE: nut consists of a body and two nuts located inside. Thrust bearings are installed between the body and the nuts, one of the rings of which has a variable thickness. The load on the nuts from the side of its body is transferred alternately, and the nuts are connected to the body by friction clutches, the nuts rotate in turn, and the balls move along the spiral surface.
EFFECT: no friction force in the nut and creating equivalent ball screws, but with steps of less than a millimetre.
2 cl, 5 dwg
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