Double-row angular contact ball bearing in tandem arrangement whereby the flow of lubricant passing through the bearing is controlled by the cage

摘要

First and second annular clearances are formed between an outer peripheral surface of an annular portion of a cage and an inner peripheral surface of an annular piece of a first outer ring member, and between an inner peripheral surface of a baffle piece and an outer peripheral surface of a shoulder portion of a first inner ring member, respectively, and these radial widths are set to be larger than 0 and 0.15 times or less of a diameter of a ball, respectively.