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    • 3. 发明专利
    • COMPLETE LUBRICATION DEVICE FOR SUPPORT PART WHICH ROTATES AT HIGH SPEED
    • JPH1172195A
    • 1999-03-16
    • JP19061798
    • 1998-07-06
    • SKF IND SPA
    • BESSONE MARIOCASAZZA GIAMPAOLO
    • F16N7/32F16C20060101F16C33/66
    • PROBLEM TO BE SOLVED: To provide a rotary bearing support part which rotates at a high speed and supports by providing a first ring which rotates concentrically with a stationary second ring, a rolling element stored in an annular cavity partitioned and formed by the first and second rings, and an interval retainer which holds the rolling element. SOLUTION: Lubricating oil which enters into a stationary radial direction supply passage 23 is deflected in the direction of crossing, flows out into a crossing direction passage 47 through an opposing part 30, and is suctioned from the crossing direction passage due to vacuum created by centrifugal force in a cavity 8 along protrusion parts 40 of each ring 36, 37 through an axial direction hole 44 by means of a stationary front wall. A radial direction lubricating oil supply passage of a fixed outer side spacer 22 is communicated with a pair of holes 53 apart from each other in an angular direction, and this pair of holes are extended in the direction of crossing from both sides of the outer side spacer 22 and are positioned on the outside with respect to the opposing opening part 30 in an interval retainer 20 to lubricate a slide contact region 54 between the retainer 20 of a bearing and an outer ring 7 efficiently.