Title:
BEARING
Document Type and Number:
Japanese Patent JP2022052173
Kind Code:
A
Abstract:
To provide a bearing in which non-contact type sealing structure having high sealing performance can be materialized with simple constitution while suppressing the degradation of strength.SOLUTION: A bearing 10 comprises: a first inner ring 1 having a raceway surface 11 and an end face 13 on the first side in an axial direction A; a first outer ring 3 having a raceway surface 31 and an end face 33 on the first side; a plurality of first cylindrical rollers 5 arranged between the raceway surface 11 of the first inner ring 1 and the raceway surface 31 of the first outer ring 3; and a first seal 7 mounted to the first outer ring 3 and covering a clearance between the first inner ring 1 and the first outer ring 3 from the first side. The end face 13 of the first inner ring 1 is located on the first side with respect to the end face 33 of the first outer ring 3. A first groove 14 annularly extending in the axial direction A as the depth direction is formed in the end face 13 of the first inner ring 1. The first seal 7 has a first cylindrical portion 71 arranged in the first groove 14 so that a plurality of axial labyrinths AL1, AL2 are formed.SELECTED DRAWING: Figure 2
Inventors:
SHIMIZU KENJI
Application Number:
JP2020158386A
Publication Date:
April 04, 2022
Filing Date:
September 23, 2020
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/80; F16C19/24; F16J15/447
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenichi Shibayama
Yoshiki Kuroki
Kenichi Shibayama
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