Lubricating Structure Of Rolling Bearing

摘要

A lubricating structure of a rolling bearing capable of achieving an increase in speed and service life and a maintenance-free by using only a grease sealed in the bearing and efficiently using a grease base oil. The lubricating structure comprises a mist recovery mechanism ( 6 ) recovering mist produced during the operation near a rolling-element rolling space ( 5 ) into a recovery space ( 11 ) and a re-inflow mechanism ( 7 ) in the inner ring rotating rolling bearing lubricated with the grease sealed in the bearing. The re-inflow mechanism ( 7 ) re-flows, by the rotation of an inner race ( 1 ), the mist recovered into the recovery space ( 11 ) into bearing spaces from the inner diameter side of a retainer ( 4 ) by utilizing the outside diameter inclined surface ( 1 b) of the inner ring.