Linear motion carriage system and method with bearings preloaded

Details Linear motion carriage system and method with bearings preloaded Linear motion carriage system and method with bearings preloaded

1999-01-21

2000-11-21

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Linear

H02K 4100

Patent

active

061507407

ABSTRACT:
A system and method of preloading linear motion bearings arranged to move between two orthogonal surfaces of each of a rail and an overlapping carriage, wherein a permanent magnet linear electric motor with a high attractive force between the coils and the magnets is inclined at an acute angle to the surfaces, such that the attractive force creates a preload force on each of the bearings; the magnet being fixed as a track in a trough along the rail, and the coils being recessed in a groove in the inner top surface of the carriage, both oriented at said acute angle, and providing through such preloading, a high degree of stiffness and load capacity in all degrees of freedom of the carriage except in the linear direction of movement along the rail.

REFERENCES:
patent: 4985651 (1991-01-01), Chitayat
patent: 5488771 (1996-02-01), DeVitt et al.

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