ROLLING BEARING, FOR EXAMPLE A CONTACT BALL BEARING FOR BEARING QUICKLY SPINNING SPINDLES IN MACHINE TOOLS

摘要

The invention relates to a rolling bearing (1), for example a contact ball bearing for bearing quickly spinning spindles in machine tools, comprising an outer ring (2) with an outer lateral surface (3) and an outer ring track (5) which is formed in an inner lateral surface (4) of the outer ring (2), an inner ring (6) with an inner ring track (8) which is formed in an outer lateral surface (7) of the inner ring (6), rolling bodies (9) which are arranged so as to roll in the outer ring track (5) and in the inner ring track (8), and at least one lubricant bore (1) which is arranged in the outer ring (2) and which runs from the lateral surface (3) of the outer ring to the proximity of the outer ring track (5) on the inner lateral surface (4). The aim of the invention is to increase the service life of the lubricant supplied via the lubricant bore. According to the invention, this is achieved in that the at least one lubricant bore (11) is formed in an inclined manner in the circumferential direction of the bearing ring (2) at an angle (q) of 90° > α > 0° relative to a straight radial line (20), which is perpendicular to the longitudinal axis of the rolling bearing (1), in the outer ring (2) and/or in the inner ring (6).