Bearing assembly with dynamic drainage supplied with lubricant
AssigneeSociete Nationale d'Etude de Contruction de Moteurs d'Aviation "Snecma"
InventorsGuy Franck Paul Dusserre-Telmon, Daniel Georges Plona, Christophe Yvon Gabriel Tourne
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Abstract
A bearing assembly having dynamic drainage for lubrication oil which incls rings which are provided with races with a conical-shaped cross-section which the balls contact at pairs of side contact points. The central circumference of each ring is free; cooling oil drillings are drilled in it. This arrangement gives better oil circulation characteristics, thus improving the bearing efficiency and less heat is dissipated. Thus higher speed can be expected. The drillings responsible for drainage are inclined in the direction of rotation in order to facilitate drainage outside the roller bearing.
Claims9
A bearing assembly, which comprises:
- a bearing housing an inner ring and an outer ring;
- a plurality of bearing elements engaged between said inner ring and said outer ring wherein at least one of said rings has a plurality of drainage orifices formed therein, said orifices draining lubricating liquid to a location outside said bearing and being inclined in a direction of rotation of said bearing to facilitate flow of the lubricating liquid.
Dependencies are inferred from the claim text.