OIL-AIR LUBRICATION TYPE ROLLING BEARING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an oil-air lubrication type rolling bearing device which has advantage capable of supplying oil-air to different locations, and in which two nozzles are provided at one guide passage and thus a problem of reduction of an air amount per each nozzle is resolved.;SOLUTION: At a first position of a nozzle member 3, a first guide passage and a first nozzle are provided, and at a second position different from the first position, a second guide passage 23 and a second nozzle 24 are provided. Oil-air blown out from the first nozzle is used for lubrication of a raceway surface 11a of an outer ring 11, and oil-air blown out from the second nozzle 24 is used for lubrication of a raceway surface 12a and right and left flange parts 12b, 12c of an inner ring 12. The discharge direction of the second nozzle 24 is tilted with respect to the axial direction, and is a direction facing the right flange part (a distant side flange part) 12c of the inner ring 12.;COPYRIGHT: (C)2013,JPO&INPIT