Title:
SEAL-EQUIPPED BEARING
Document Type and Number:
WIPO Patent Application WO/2022/202544
Kind Code:
A1
Abstract:
The present invention suppresses the intrusion of foreign matter into the interior of a bearing in a seal-equipped bearing in which, due to a plurality of protrusions in a seal lip, a fluid lubrication condition can be created between the seal lip and a seal sliding surface. As a means therefor, the protrusions (12) extend in a diagonal direction such that lubricating oil in gaps (13) between the protrusions (12) is pressurized in the direction of exiting to the exterior, in conjunction with the rotation of the bearing. Alternatively, the seal lip has ribs that are positioned out of phase with the plurality of protrusions so as to face the gaps, and are positioned with a space between the ribs and the seal sliding surface. Alternatively, protrusions that are neighboring in the circumferential direction extend in directions that are slanted with regard to the circumferential direction, in directions opposing one another.
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Inventors:
SASAKI KATSUAKI (JP)
SUZUKI YUUSUKE (JP)
MOCHIZUKI YUTA (JP)
TAKEDA YOSHIKI (JP)
SAKURAI TAKEHITO (JP)
SUZUKI YUUSUKE (JP)
MOCHIZUKI YUTA (JP)
TAKEDA YOSHIKI (JP)
SAKURAI TAKEHITO (JP)
Application Number:
PCT/JP2022/011933
Publication Date:
September 29, 2022
Filing Date:
March 16, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/06; F16C33/78; F16J15/3204; F16J15/324
Foreign References:
| JP2020041659A | 2020-03-19 | |||
| JP2021011896A | 2021-02-04 | |||
| DE102009049466A1 | 2011-04-21 | |||
| JP2020159382A | 2020-10-01 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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