Bearings – Linear bearing – Recirculating
Patent
1987-03-06
1987-10-27
Levy, Stuart S.
Bearings
Linear bearing
Recirculating
F16C 2906
Patent
active
047026227
ABSTRACT:
A linear slide roller bearing unit has an elongated track shaft having left and right ridges projected laterally from both sides thereof and extending along the length thereof, each ridge being provided at each of its sides with loaded roller surfaces directed upwardly and obliquely downwardly and extending along the length of the ridge. The bearing unit further has a bearing block mounted on the track shaft for movement along the length of the track shaft. The bearing block has a substantially inversed U-shaped cross-section constituted by an upper horizontal flat portion and skirts suspended from both sides of the horizontal flat portion. The horizontal flat portion is provided in its upper and lower sides with pairs of non-loaded roller grooves and loaded roller grooves extending along the length of the bearing block. The non-loaded grooves are connected to the loaded grooves through turning grooves. The skirt have slanted lower end surfaces directed inwardly and downwardly, and are provided at their mid portions with guide ridges extending along the length of the bearing block. The slanted end surfaces are provided at one sides of the guide ridges with loaded rolling surfaces opposing to the obliquely downwardly directed loaded roller rolling surfaces on the track shaft and at the other sides of the guide ridge with non-loaded roller rolling surfaces.
REFERENCES:
patent: 4296974 (1981-10-01), Teramachi
patent: 4302059 (1981-11-01), Teramachi
patent: 4396235 (1983-08-01), Teramachi
Levy Stuart S.
Werner David
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