Title:
PROCESSING DEVICE, CERAMIC SPHERE, AND ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2022/065292
Kind Code:
A1
Abstract:
A processing device (1) is provided with a first surface plate (10), a first shaft (12), a second surface plate (20) including a retaining unit (20B), a second shaft (22), a polishing layer (11), and a first elastic member (50). The first surface plate (10) includes a first face (10c) that comes into contact with and retains a green ball (91). The first shaft (12) rotates the first surface plate (10) around an axis α. The second surface plate (20) includes: a second face (20c) that faces the first face (10c), and comes into contact with and retains the green ball (91); and the retaining unit (20B) that extends to protrude in a direction intersecting the second face (20c) and surrounds the green ball (91). The second shaft (22) rotates the second surface plate (20) around an axis β. The polishing layer (11) comes into contact with the green ball (91) to polish the green ball (91). The first elastic member (50) is arranged on an inner wall portion of the retaining unit (20B) of the second surface plate (20).
Inventors:
SATO NORIHIDE (JP)
NAKAMURA FUMIYA (JP)
NAKAMURA FUMIYA (JP)
Application Number:
PCT/JP2021/034544
Publication Date:
March 31, 2022
Filing Date:
September 21, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B24B11/06; B24B55/06; B28B11/08; C04B35/587; F16C33/32
Foreign References:
| JP2011073076A | 2011-04-14 | |||
| JPH01271164A | 1989-10-30 | |||
| JPS5444494U | 1979-03-27 | |||
| JPH10296623A | 1998-11-10 | |||
| JP2010207933A | 2010-09-24 | |||
| JPH03196963A | 1991-08-28 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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