DEVICE FOR CONTROLLING RADIAL DIRECTIONAL PLAY OF ROLLER BEARING

摘要

PROBLEM TO BE SOLVED: To adjust a flow rate of discharge lubricating oil, cool a ring, and control a play of a bearing by forming a discharge passage penetrating through an outside ring of the bearing in the direction different in the circumferential direction or the shaft direction of the ring. ;SOLUTION: A lubricating circuit has a pump 6 in a supply system starting from an oil tank 5, and oil advances in the direction of an outside ring 2 by passing through the periphery of a ball 3 by penetrating through an inside ring 1 from a supply passage 8 extending in the radial direction from the shaft inside of a shaft 7. At this time, a lateral directional end shield 10 prevents leakage of the oil. The oil energized outward by centrifugal force flows out of a bearing by a discharge passage 12 pentrating through the outside ring 2. Here, the discharge passage 12 has a radial directional passage 121 alternately with an inclined passage 122. A discharge flow rate brought by these discharge passage 12 changes by a rotating speed, and the radial directional discharge passage 121 is suitable for a low rotating speed, and when a rotating speed is high, the oil is satisfactorily discharged by the inclined passage 122.;COPYRIGHT: (C)1999,JPO