Title:
ROLLING BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/009453
Kind Code:
A1
Abstract:
A rolling bearing device comprises an inner ring 11 that rotates integrally with a mallet-type roll 3, an outer ring device 12, a plurality of rollers 13, a labyrinth ring 31 attached to an axle box 17, and an oil seal 33 that is in sliding contact with the labyrinth ring 31. A second seal groove 72, to which the oil seal 33 is attached, is provided on the outer periphery of the inner ring 11. The second seal groove 72 has a first side surface 76, a second side surface 77, and a groove bottom surface 78. The oil seal 33 includes a fixing part 51 provided along the groove bottom surface 78, a lip part 55 that is in contact with the labyrinth ring 31, and an urging part 52. The urging part 52 has a first extending part 61 extending from the fixing part 51, and a second extending part 62 extending from a relay part 64 of the first extending part 61. At least some of the first extending part 61 and the second extending part 62 is provided between the first side surface 76 and the second side surface 77, and the relay part 64 is able to come into contact with the side surface 76.
Inventors:
URANISHI TAKEHARU (JP)
Application Number:
PCT/JP2022/026957
Publication Date:
January 11, 2024
Filing Date:
July 07, 2022
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
F16C13/02; F16C33/78
Foreign References:
| JP2019060428A | 2019-04-18 | |||
| DE102018119936A1 | 2020-02-20 | |||
| JPH0329767U | 1991-03-25 | |||
| JPS6319473A | 1988-01-27 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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