Ball nut and screw assembly

Details Ball nut and screw assembly Ball nut and screw assembly

1977-09-22

1979-04-10

Gerin, Leonard H.

Machine element or mechanism

Gearing

Teeth

74 8915, F16H 5522, F16H 2702

Patent

active

041482263

ABSTRACT:
Ball nut and screw are grooved to form helical race for an endless train of balls that circulate through the assembly. Leading and trailing turns of the race are connected by a return passage which includes an intermediate passage extending longitudinally of the nut. Special guide tracks in end sections of the ball nut have radially relieved paths, which allow high speed balls acted upon by centrifugal forces to travel along the outer surface thereof to avoid mechanical pick up to provide for smooth vibration-free linear movement of the ball nut along the rotating screw.

REFERENCES:
patent: 476304 (1892-06-01), Pratt
patent: 3170336 (1965-02-01), Bohnhuff
patent: 3826153 (1974-07-01), Sheppard

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