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Title:
ROLLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/013220
Kind Code:
A1
Abstract:
This rolling device is provided with an inner member having an orbital surface on the outer surface, an outer member arranged outside of the inner member and having an orbital surface opposite of the orbital surface of the inner member, and a rolling body rollably arranged between the two orbital surfaces. In the rolling device, at least one of the orbital surface of the inner member, the orbital surface of the outer member, and the rolling body is configured from a base material (11) formed from a metal material, an underlayer (12) formed on the surface of the base material (11), and a functional layer (13) formed on the surface of the underlayer (12), and the functional layer (13) is configured as a composite layer having a laminate structure formed by alternately laminating WC layers and C layers. By forming a coating layer on constituent members, it is possible to achieve a rolling device which prevents metal contact and improves wear characteristics and lubrication life characteristics.

Inventors:
TAKI Yoshio (2-12-10 Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
KANEKO Tomonori (2-12-10 Shibaura, Minato-k, Tokyo 06, 〒1088506, JP)
SHIMIZU Hiroyuki (1-12-6 Kuise Minami Shinmachi, Amagasaki Cit, Hyogo 22, 〒6600822, JP)
AMANO Tomoko (1-12-6 Kuise Minami Shinmachi, Amagasaki Cit, Hyogo 22, 〒6600822, JP)
YANO Yoshinobu (1-12-6 Kuise Minami Shinmachi, Amagasaki Cit, Hyogo 22, 〒6600822, JP)
SATO Shinichiro (1-12-6 Kuise Minami Shinmachi, Amagasaki Cit, Hyogo 22, 〒6600822, JP)
Application Number:
JP2018/026085
Publication Date:
January 17, 2019
Filing Date:
July 10, 2018
Export Citation:
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Assignee:
THK CO., LTD. (2-12-10 Shibaura, Minato-ku Tokyo, 06, 〒1088506, JP)
SHIMIZU DENSETSU KOGYO CO., LTD. (1-12-6 Kuise Minami Shinmachi, Amagasaki City Hyogo, 22, 〒6600822, JP)
International Classes:
F16C29/06; F16C33/62; F16C33/66; F16H25/22; F16H25/24
Domestic Patent References:
WO2016140225A12016-09-09
Foreign References:
JP2002235748A2002-08-23
JP2003254340A2003-09-10
JP2010106311A2010-05-13
JP2004076756A2004-03-11
Attorney, Agent or Firm:
KAITA Hiroaki (801 Miyata Bldg, 1-38-2 Yoyogi, Shibuya-k, Tokyo 53, 〒1510053, JP)
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