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Title:
BEARING DEVICE FOR WHEEL
Document Type and Number:
Japanese Patent JP2018013230
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bearing device for wheel in which, when fitting in a snap ring, a tip of a tool does not come into contact with a seal member and which does not break the seal member.SOLUTION: In a bearing device 1 for wheel, a bearing 2 is constituted by: an outer ring 3; a pair of inner rings 4; a plurality of rows of rolling elements 5 interposed between rolling surfaces of the outer ring 3 and inner rings 4 respectively in a freely rolling manner; and seal members 6, 7 arranged so as to block both side openings of an annular space formed between the outer ring 3 and the inner rings 4. The bearing device for wheel includes: a housing 8 for accommodating the bearing 2; and a snap ring 10 for sealing the bearing 2 in the housing 8. The bearing device for wheel is assembled in such a manner that, after press-fitting the bearing 2 in a hole 8a of the housing 8, the snap ring 10 is fitted in a ring groove 8d formed on an inner periphery of the hole 8a. The bearing device for wheel includes a substantially disc shaped protection tool 9 mounted on an outer side end part of the bearing 2. The protection tool 9 covers one part or the whole of the outer side seal member 7 out of the seal members 6, 7.SELECTED DRAWING: Figure 7

Inventors:
ONO YUJIRO
TAKUBO TAKAYASU
Application Number:
JP2016144951A
Publication Date:
January 25, 2018
Filing Date:
July 22, 2016
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C43/04; B23P19/02; B23P21/00; F16B21/18; F16C19/38; F16C33/78
Attorney, Agent or Firm:
Yanouchi Foreign Patent Office