ROULEMENT AVEC DRAINAGE DYNAMIQUE ALIMENTE EN LUBRIFIANT

摘要

The ball bearing has balls (20) engaged between an internal ring (16) and an external ring (17). The ring tracks (18,19) have an ogival section so that the balls touch in pairs of lateral contact points (25-28). The central circumference of (21,22) of each ring is opened by cooling oil drillings (23,24). One of the rings is passed through by lubricating liquid drainage orifices (24) which are inclined in the direction of bearing rotation so as to favour flow of the liquid lubricant. The ball bearing contact points are located on either side a central area, and the drainage orifices are located in the central area. Lubricating oil supply drillings (23) pass through one of the rings and the side ball contact points with this ring are located between these drillings and the ring central circumference.