Roller bearing for an infinite rectilinear motion

Details Roller bearing for an infinite rectilinear motion Roller bearing for an infinite rectilinear motion

1986-12-05

1988-04-05

Footland, Lenard A.

Bearings

Linear bearing

Recirculating

F16C 2906

Patent

active

047355140

ABSTRACT:
A roller bearing for an infinite rectilinear motion is composed of a long truck rail; a casing mounted astride the truck rail, and having truck faces in opposition to the truck faces of the truck rail, and having return passages for rollers arranged in a parallel-roller type between the faces of the truck rail and the casing. Side plates having direction change passages are fixed on the both longitudinal ends of the casing, and the direction change passages connect the truck face and the return passage. A shifting passage is formed at the connection of the truck face with the direction change passage to cause the rollers to go away off the truck rail without changing the angle between the roller axis and the horizon. Further, a twisting passage follows the shifting passage to change the angle between the roller axis and the horizon. Those passages enable rollers to smoothly go in and out of the truck face with relatively less resistance. As a four row parallel roller type, the present bearing can be made to have the smallest sectional height, and at a reasonable price. Incidentally the twisting passage can be made in the manner that it is twisted while gradually going away off the truck rail.

REFERENCES:
patent: 4496198 (1985-01-01), Geka
patent: 4504097 (1985-03-01), Mottate
patent: 4511189 (1985-04-01), Mottate
patent: 4556262 (1985-12-01), Geka

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