Title:
SLIDING BEARING, BEARING DEVICE, AND IMAGE FORMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/142843
Kind Code:
A1
Abstract:
The present invention provides: a sliding bearing that has an exceptional low-friction property though containing no oil, and allows any increase in shaft temperature to be minimized even under continuous duty; and an image formation device comprising the sliding bearing. Sliding bearings 5a-5c rotatably support rotating shafts on cylindrical inside-diameter surfaces. The sliding bearings 5a-5c are compacts of an oil-free resin composition that contains no oil, the resin composition having an injection-moldable ultra-high molecular weight polyethylene resin as a base resin, and containing an ethylene tetrafluoride resin and an acicular inorganic filler having a Mohs hardness of 3 or less as additives. Relative to the total resin composition, the ultra-high molecular weight polyethylene resin content is 65 vol% or more, the ethylene tetrafluoride resin content is 5 to 25 vol%, and the acicular inorganic filler content is 1 to 20 vol%.
Inventors:
MUNEDA NORIKAZU (JP)
HIROSE KAZUO (JP)
HIROSE KAZUO (JP)
Application Number:
PCT/JP2019/001176
Publication Date:
July 25, 2019
Filing Date:
January 17, 2019
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/20; C08J5/16; C08L23/06; C08L27/18; F16C17/02; G03G15/00; G03G15/08
Foreign References:
| JP2015148285A | 2015-08-20 | |||
| JP2013079714A | 2013-05-02 | |||
| JPH09257048A | 1997-09-30 | |||
| JPS60107418U | 1985-07-22 | |||
| JPH10281142A | 1998-10-20 | |||
| JP2011257703A | 2011-12-22 | |||
| JPH11160644A | 1999-06-18 | |||
| JP4669104B2 | 2011-04-13 | |||
| JP5456960B2 | 2014-04-02 | |||
| JP2003020408A | 2003-01-24 | |||
| JPH09257048A | 1997-09-30 |
Other References:
See also references of EP 3742012A4
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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