1983-01-25
1984-01-24
Petrakes, John
Cutlery
F16C 2906
Patent
active
044272405
ABSTRACT:
An endless ball bearing arrangement for relative longitudinal movement between a table having a longitudinal edge portion and a longitudinal side portion, one of said edge or side portions is movable with respect to the other portion. The arrangement consists of a pair of elongated straight metal block bearing bodies located in one of said longitudinal portions facing the opposite longitudinal portion. The front part of these bearing bodies has a W-shaped cross section laying on its side. The outer arms of the W-shape extend towards the top and bottom of the bearing bodies with the center of the W-shape pointing towards the back of the bearing bodies. A pair of bearing first races in the bearing bodies extend parallel at the junction of the arms of the W-shape and the center part, across the length of the bearing bodies. These are the races for the loaded balls. Second races for unloaded balls parallel to the first races are disposed away from said first races in the bearing bodies. Disposed over the front part is a retainer also of W-shape sized to fit over the first races, means are at opposite ends of the retainer to scoop up balls. End plates with U-shaped turning grooves are provided for guiding balls. And, race bars with bearing third races are provided in the opposite portion to cooperate with the first races.
REFERENCES:
patent: 4253709 (1981-03-01), Teramachi
patent: 4296974 (1981-10-01), Teramachi
patent: 4363526 (1982-12-01), Teramachi
Oujevolk George B.
Petrakes John
Werner David J.
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