Title:
BALL BEARING AND PULLEY
Document Type and Number:
WIPO Patent Application WO/2022/065194
Kind Code:
A1
Abstract:
The present invention comprises an inner race (11), an outer race (12), a ball (13), a seal member (14), and a slinger (15), wherein: the seal member (14) has an annular base part (23), and an annular projection (24) extending in the axial direction from the base part (23) toward the slinger (15); the slinger (15) has an annular flat part (28) conforming to the base part (23), and a step (29) which bends in the axial direction in accordance with the formation position of the annular projection (24) so as to maintain a non-contact state with the annular projection (24) ; a radial labyrinth (33) extending in the radial direction is formed between the base part (23) and the flat part (28); and an axial labyrinth (34) extending in the axial direction is formed between the annular projection (24) and the step (29).
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Inventors:
WAKUDA TAKAHIRO (JP)
KAWAGUCHI HAYATO (JP)
KAWAGUCHI HAYATO (JP)
Application Number:
PCT/JP2021/034118
Publication Date:
March 31, 2022
Filing Date:
September 16, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/78; F16C19/06; F16C33/80; F16H55/36; F16J15/3232; F16J15/3256; F16J15/447
Foreign References:
| JP2008064238A | 2008-03-21 | |||
| JP2017180552A | 2017-10-05 | |||
| JP2020051597A | 2020-04-02 | |||
| JP2014109330A | 2014-06-12 | |||
| JPH03127098U | 1991-12-20 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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