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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR MANUFACTURING BEARING UNIT FOR SUPPORTING WHEEL AND METHOD FOR MANUFACTURING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/012450
Kind Code:
A1
Abstract:
Rotary forging for forming a hub-side face spline is started while a caulking portion (18) is in contact with a flat surface portion (30) and a chamfered portion (31), which are axially inner end faces of an inner ring (9). In addition, a contact part (P) between the axially inner end face of the caulking portion (18) and a machining surface (35) of a roll (32) at the start of the rotary forging is superposed in the axial direction on a contact part between the caulking portion (18) and the flat surface portion (30) and the chamfered portion (31) of the inner ring (9).

Inventors:
HAGIWARA NOBUYUKI (JP)
ISHIMORI YASUHIRO (JP)
KATOU HIROSHI (JP)
Application Number:
JP2017/025101
Publication Date:
January 18, 2018
Filing Date:
July 10, 2017
Export Citation:
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Assignee:
NSK LTD (JP)
International Classes:
B21K1/05; B21J9/02; B60B35/14; B60B35/18; F16C19/18; F16C35/063
Foreign References:
JP2015077616A2015-04-23
JP2009274515A2009-11-26
JP2005195084A2005-07-21
Other References:
See also references of EP 3486000A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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