Bearings – Linear bearing – Recirculating
Patent
1990-04-05
1991-01-08
Footland, Lenard A.
Bearings
Linear bearing
Recirculating
F16C 2906
Patent
active
049830481
ABSTRACT:
The invention relates to a ball circulation bush having a longitudinal slot which, in its cross-section embraces an at least partially circular guiding rail. The balls of the circumferentially distributed ball rows are guided in a cage and, with their carrying portion, are arranged in a radial plane which is circumferentially offset relative to the radial plane of the balls in the returning portion. Furthermore, the balls in the returning portion are arranged on a larger diameter than those in the carrying portion. The cage is designed in several parts and includes indentically designed guiding parts and head pieces which are held relative to each other by stabilizing bars attached in bores and aligned in the solid bush via centering cams. In the regions which at the same time serves as the race for the balls in the carrying portion, the bush is designed to be thick-walled. At its ends the bush is provided with bore steps and with thin walls where the guiding parts and the head pieces are hold by holding rings and beaded edges.
REFERENCES:
patent: 4303280 (1981-12-01), Geffner
patent: 4480879 (1984-11-01), Reith et al.
patent: 4629337 (1986-12-01), Teramachi
patent: 4695170 (1987-09-01), Teramachi
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