Ball screw unit

Details Ball screw unit Ball screw unit

2011-03-15

2011-03-15

Hannon, Thomas R (Department: 3656)

Machine element or mechanism

Gearing

Directly cooperating gears

C074S089370, C074S089300

Reexamination Certificate

active

07905157

ABSTRACT:
A housing has a screw shaft passing wall in which a through hole, through which a screw shaft passes, is formed. A spline outer cylinder is held at one end by the screw shaft passing wall, and a disc spring that biases the spline outer cylinder toward the screw shaft passing wall is arranged at the other end of the spline outer cylinder. A tapered recess is formed in one end face of the spline outer cylinder, and a tapered projection that is fitted in the tapered recess is formed in a face of the screw shaft passing wall of the housing, which faces the spline outer cylinder.

REFERENCES:
patent: 2401757 (1946-06-01), Hardsocg
patent: 5121647 (1992-06-01), Teramachi
patent: 5649451 (1997-07-01), Ruland
patent: 6202803 (2001-03-01), Lang
patent: 6761080 (2004-07-01), Lange et al.
patent: 7-237172 (1995-09-01), None
patent: 9-177925 (1997-07-01), None
patent: 2005-264992 (2005-09-01), None
Extended European Search Report dated Dec. 17, 2009.

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