Cutlery
Patent
1983-09-27
1985-01-29
Footland, Lenard A.
Cutlery
F16C 2906
Patent
active
044961987
ABSTRACT:
A roller bearing for endless linear motion wherein a casing mounted on a track rail makes linear motion through a plurality of rollers circulating endlessly. A circulating path for the rollers is constructed by load track, return hole and direction changing path. The load track and return hole are straight, parallel to each other and approximately square shape in cross section, respectively. The center of the return hole does not lie in the horizontal bisecting plane of the right angle V groove of the load track. The return hole is symmetric to the load track with respect to the perpendicular bisector of the segment line joining the centers of the rollers in the return hole and the load track. The direction changing path is a cylindrical surface of revolution which is approximately square shape in cross section and which is formed by revolving 180.degree. between the load track and the return hole, the axis of revolution being the perpendicular bisector of the segment line joining the centers of rollers in the return hole and the load track.
Thus the most compact roller bearing for endless linear motion having smooth motion and high strength is obtained.
REFERENCES:
patent: 4302059 (1981-11-01), Teramachi
patent: 4352526 (1982-10-01), Imai
patent: 4396235 (1983-08-01), Teramachi
patent: 4405185 (1983-09-01), Oetjen
Footland Lenard A.
Nippon Thompson Co. Ltd.
Rogers, III L. Lawton
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