Roller with self-lubricated bearing

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

Patent

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Details

F16C 13/00 (2006.01) F16C 33/14 (2006.01) F16C 33/20 (2006.01)

Patent

CA 2363103

A roller with a self-lubricating bearing or bearing (10) is formed by molding a laminated bearing insert (12) in-situ within a nylon support or member (14). The bearing (10) provides a one-piece, self-lubricating device to replace conventional multiple-piece bearing assemblies which typically include a nylon member having an integral metallic sleeve rotatably engaged with a conventional needle or journal bearing. An embodiment of the present invention includes a roller (10') fabricated by press-fitting the laminated bearing insert (12) into a member (14') fabricated from a metallic material. The rollers (10) and (10') of the present invention have several advantages over the prior art, including improved concentricity between the load bearing layer and roller, closer tolerances and elimination of parts and assembly steps.

On réalise un rouleau pourvu d'un coussinet autolubrifiant ou d'un coussinet (10) par moulage in-situ d'une pièce (12) de coussinet laminée à l'intérieur d'un support ou élément (14) en nylon. Ce coussinet (10) comprend un dispositif autolubrifiant en une seule pièce destinée à remplacer les dispositifs de coussinet à pièces multiples classiques, qui comportent en général un élément en nylon, dont un manchon métallique en une seule pièce est introduit de manière rotatoire dans une aiguille ou un coussinet classique. Un mode de réalisation de cette invention comprend un rouleau (10') fabriqué par ajustage serré de la pièce (12) de coussinet laminée dans un élément (14') fabriqué à partir d'un matériau métallique. Les rouleaux (10) et (10') de cette invention présentent plusieurs avantages par rapport aux techniques connues, notamment une concentricité améliorée entre la couche du coussinet de charge et le rouleau, des tolérances accrues, et une élimination de parties et d'étapes d'assemblage.

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