| 摘要 |
PROBLEM TO BE SOLVED: To provide a slurry discharging device of a bearing capable of suppressing the entry of slurry. SOLUTION: An inter-shaft passage 30 is formed by forming a predetermined clearance between the inner peripheral side of the non-rotating annular body 2 and the outer peripheral side of the rotating shaft J of the slurry discharging device A, and an inter-ring passage 32 is formed by forming a clearance between the outer peripheral side and the inner peripheral side of a rotating annular body 1. A bottom part passage 31 is formed at the lower end face of the rotating annular body by forming a specified clearance between the the lower end face and a support ring 4. The rotating annular body 1 comprises a center ring 10 and a holder ring 15. A plurality of circumferential grooves 11 are formed on the inner peripheral side of the center ring 10, and a hole 12 communicating with the circumferential groove 11 is formed from the outer periphery to the inner periphery thereof. Fine foreign matter 51 invaded into the inter-ring passage 32 is passed through the hole 12 from the circumferential groove 11 by the centrifugal force of the rotating center ring 10, discharged to the clearance 13 side, and further discharged to a slurry liquid X side through a discharge hole 16 by the centrifugal force of the rotating holder ring 15. COPYRIGHT: (C)2005,JPO&NCIPI
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