Ball screw device

Details Ball screw device Ball screw device

1995-09-28

1998-05-12

Marmor, Charles A.

Machine element or mechanism

Gearing

Teeth

744248R, F16H 2522

Patent

active

057492654

ABSTRACT:
A ball screw device is designed such that a load axially applied to a ball nut is uniformly supported by balls of all ball screw groove portions. The design is such that a gap along a load acting line between a ball and a ball screw groove portion farther from an attachment portion of the ball nut is smaller than a gap between a ball and a ball screw groove portion closer to the attachment portion, by an amount corresponding to an elastic deformation caused in the corresponding screw groove portion of the ball nut by a load acting on the ball nut.

REFERENCES:
patent: 2779206 (1957-01-01), Doerfner
patent: 4221137 (1980-09-01), Futaba
patent: 4542661 (1985-09-01), Teramachi
patent: 4557156 (1985-12-01), Teramachi
patent: 4680982 (1987-07-01), Wilke et al.
patent: 5239882 (1993-08-01), Druet
patent: 5263381 (1993-11-01), Shirai
patent: 5373754 (1994-12-01), Takei

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