Bearings – Linear bearing – Recirculating
Patent
1990-11-01
1992-01-21
Hannon, Thomas R.
Bearings
Linear bearing
Recirculating
F16C 2906
Patent
active
050823744
ABSTRACT:
A linear guide device comprising a straight guide rail, and a movable body movable as fitted over the guide rail, the movable body comprising a movable block generally inverted U-shaped in cross section and having a pair of legs at its opposite sides, each of the legs being formed with a ball circulation channel in the form of a loop, and a plurality of balls movable through the channel in circulation and rollable between the movable block and the guide rail, the movable block comprising an end cap at each of its opposite ends and an intermediate member as the remaining portion, the ball circulation channel comprising a groovelike forward passage formed by a retainer in one side of the leg of the block intermediate member and facing the guide rail, a borelike return passage formed in the leg outwardly of the forward passage, and reverse passages each formed by fitting a guide member to each of the block end caps and interconnecting the corresponding ends of the forward and return passages, the block intermediate member being divided into a cage generally U-shaped in cross section and a central main portion, the cage including as an integral unit the leg portion on the lower side of the ball circulation channel, the leg portion on the laterally outer side of the return passage, the retainer portion and the guide member portions at the opposite ends.
REFERENCES:
patent: 4637739 (1987-01-01), Mattori
patent: 4869600 (1989-09-01), Tonogai
patent: 4932067 (1990-06-01), Pester et al.
patent: 4983049 (1991-01-01), Lecomte
Hannon Thomas R.
Koyo Seiko Co. Ltd.
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