Title:
DEEP-GROOVE BALL BEARING
Document Type and Number:
WIPO Patent Application WO/2022/158401
Kind Code:
A1
Abstract:
A deep-groove ball bearing (10) is provided with an outer ring (11), an inner ring (12), a plurality of balls (13), and a seal member (15). The axial-direction cross-section width (W) is less than the radial-direction cross-section height (H) thereof (Wd), and the pitch circle diameter (PCD) of the balls (13) is greater than the midway diameter (MD) between the inner diameter of the inner ring (12) and the outer diameter of the outer ring (11) (PCD>MD). In addition, the radial direction dimension (b) between the outer diameter of the shoulder (12g) of the inner ring (12) and the inner diameter of the seal member (15) is greater than the thickness (d) of the outer ring (11) (b>d). As such, load-carrying capacity is ensured while the width thereof is narrowed and the weight thereof is reduced, and a prolonged lifespan is made possible by inhibiting grease leakage.
Inventors:
WATABE ERI (JP)
ISHIWADA HIROSHI (JP)
TAKEUCHI KENTO (JP)
MAEHARA SHIGEKI (JP)
KURAMOCHI TAKASHI (JP)
BINABDULHALIM AHMADFIRDAUS (JP)
ISHIWADA HIROSHI (JP)
TAKEUCHI KENTO (JP)
MAEHARA SHIGEKI (JP)
KURAMOCHI TAKASHI (JP)
BINABDULHALIM AHMADFIRDAUS (JP)
Application Number:
PCT/JP2022/001237
Publication Date:
July 28, 2022
Filing Date:
January 14, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
C10M169/02; C10M105/18; C10M107/02; C10M115/08; F16C19/06; F16C33/58; F16C33/66; F16C33/78; F16C33/80; F16C43/04; F16J15/3232; F16J15/447; C10N30/00; C10N40/02; C10N50/10
Domestic Patent References:
| WO2015015976A1 | 2015-02-05 | |||
| WO2004007983A1 | 2004-01-22 |
Foreign References:
| JP2011208731A | 2011-10-20 | |||
| JP2007107560A | 2007-04-26 | |||
| JP2012013116A | 2012-01-19 | |||
| JP2021008898A | 2021-01-28 | |||
| JP2021008899A | 2021-01-28 | |||
| JP2021008900A | 2021-01-28 | |||
| JP2021008901A | 2021-01-28 | |||
| JP2021008902A | 2021-01-28 | |||
| JP2021008903A | 2021-01-28 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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