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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING VEHICLE WHEEL BEARING DEVICE, AND VEHICLE WHEEL BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/153417
Kind Code:
A1
Abstract:
Provided are a vehicle wheel bearing device and a method for manufacturing a vehicle wheel bearing device, with which the pressure difference between the atmospheric pressure inside a bearing and the atmospheric pressure at the area where said bearing is used can be kept within a tolerance range without providing a mechanism for pressure adjustment to the vehicle wheel bearing device. This method for manufacturing a vehicle wheel bearing device (1) comprises: a pressure adjustment step in which the vehicle wheel bearing device (1), to which an outer-side seal member (9) is fitted while inside a work chamber (Rw), is hermetically sealed within the work chamber (Rw), and the pressure inside the work chamber (Rw) is adjusted to a predetermined atmospheric pressure (Pt) corresponding to the environment of the area where the vehicle wheel bearing device (1) will be used; and a hermetical sealing step in which, within the pressure-adjusted work chamber (Rw), an inner-side opening (2a) of an outer race (2) is fitted with a cover (12) that hermetically seals the inner-side opening (2a) or with an inner-side seal member (6) that forms a seal between the outer race (2) and a hub ring (3) or an inner race (4).

Inventors:
FUKUSHIMA SHIGEAKI (JP)
NAGAI NATSUKO (JP)
Application Number:
PCT/JP2020/002240
Publication Date:
July 30, 2020
Filing Date:
January 23, 2020
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60B35/02; F16C19/18; F16C33/78; F16C43/04
Foreign References:
JP2010038250A2010-02-18
JP2006224902A2006-08-31
JP2013213571A2013-10-17
JP2009068581A2009-04-02
JP2019173878A2019-10-10
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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