Linear motion bearing segment

F - Mech Eng,Light,Heat,Weapons – 16 – C

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F16C 29/06 (2006.01)

Patent

CA 2426792

A linear motion bearing assembly (20) as provided for movement along a splined shaft (10). The rolling element retainer of the bearing assembly (20) is assembled from a plurality of arcuate interengageable self-contained rolling element retainer segments (22). Each of the rolling element retainer segments (22) includes at least one rolling element track (30) having a load bearing portion (34) and a return portion (36). At least one load bearing plate (44) is axially positioned in each segment and serves to receive and transmit loads from the bearing rolling elements (32) in the load bearing portion (34) of the ball tracks (30). An extended housing retainer structure encloses all of the exposed exterior surfaces of the rolling element retainer segments (22) and is configured and dimensioned to maintain the rolling element retainer segments (22) in position and to receive a load either directly or indirectly from the load bearing plates (44).

Ensemble palier à mouvement linéaire (20) destiné à se déplacer le long d'un arbre nervuré (10). Le dispositif de retenue des éléments billes de l'ensemble palier (20) est assemblé à partir d'une pluralité de segments incurvés, emboîtables et autonomes de retenue des éléments billes (22). Chacun des segments de retenue des éléments billes (22) comporte au moins une piste (30) pour éléments billes comportant une partie de transmission de charge (34) et une partie de rappel (36). Au moins une plaque de transmission de charge (44) est placée axialement dans chaque segment et sert à recevoir et transmettre les charges provenant des éléments billes (32) dans la partie de transmission de charge (34) des pistes pour billes (30). Une structure étendue de retenue de type boîtier, qui entoure toutes les surfaces extérieures exposées des segments de retenue des éléments billes (22), est configurée et dimensionnée de manière à retenir les segments de retenue des éléments billes (22) en position et à recevoir une charge, soit directement, soit indirectement à partir des plaques de transmission de charge (44).

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