Bearings – Linear bearing – Roller bearing
Patent
1986-03-26
1987-12-29
Levy, Stuart S.
Bearings
Linear bearing
Roller bearing
384 57, 384 58, F16C 2904, F16C 2912
Patent
active
047157305
ABSTRACT:
This patent relates to roller bearing self-aligning pillow blocks, which are constructed to include one or more sealed roller bearings disposed in tangential relation to the primary shaft at one or more positions around its periphery. Each roller bearing is mounted to rotate about its own stud, so that it acts as a cam follower. In some embodiments the roller bearings are disposed singly, or in pairs, in three positions spaced-apart 120 degrees around the periphery of the shaft. In other embodiments the bearings disposed to the right or the left of the center are in diametrically-opposite positions. Alternatively, in another embodiment, the rollers are disposed only in contact with the upper surface of the shaft at positions spaced-apart, say, 45 degrees. A particular feature of the invention is a device for fine tuning the tangential contact between a roller and the surface of the principal shaft by utilizing a screw to rotate an eccentrically-tapped stud supporting the roller, or an eccentrically-disposed rotatable plate supporting a pair of rollers.
REFERENCES:
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Linear Bearing Stiffness Triped by Tight Design, by Frank Yeaple, Fluid Power Editor, 96/Design News, 12/17/84.
Thomson Industries, Inc., Manhasset, New York, N.Y. 11030, 1983 Catalogue Pages (3).
Thomson Industries, Inc., Manhasset, N.Y. 11030, undated ad (2 pages, front and back).
McGill Precision Bearings, Catalogue, H-80A, Sep. 1984 (6 pages).
Hannon Thomas R.
Lee Controls, Inc.
Levy Stuart S.
Pugh Martha G.
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