Bearing module for a vacuum pump

摘要

The bearing module (1) has a rapidly rotatable shaft having a rolling bearing for supporting rotatably the shaft (2), a reservoir (21) for a lubricant having an element forming a sliding contact with a delivery structure (22) is supported on the shaft for delivery of the lubricant in the rolling bearing under action of centrifugal forces generated during rotation of the shaft. A radial delivery (25, 46) is provided on a side of the rolling bearing opposite a side of the bearing at which the delivery structure is located, for returning the lubricant to the reservoir. An independent claim is included for a vacuum pump.