Title:
BEARING DEVICE
Document Type and Number:
Japanese Patent JP2010090943
Kind Code:
A
Abstract:
To provide a bearing device superior in load capacity and rigidity, downsized with reduced thickness and width for improved installing efficiency, and suitable in use for a turning part of a robot arm for example.
A pair of angular ball bearings 11 arranged side by side are each set so that the bearing size is ball diameter dball number N/((outer diameter Do-inner diameter di)/2)15 and ball diameter dball number N/bearing width W14. A seal member 15 is arranged on each ball 14 only at its axial outside. The bearings 11 are filled with such grease that urea as thickener is mixed in base oil consisting of synthetic hydrocarbon oil.
Inventors:
YAMADA MANABU
DENPO KOTETSU
DENPO KOTETSU
Application Number:
JP2008259745A
Publication Date:
April 22, 2010
Filing Date:
October 06, 2008
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C19/18; F16C19/16; F16C25/06; F16C33/66; F16C33/78
Domestic Patent References:
| JP2008185062A | 2008-08-14 | |||
| JP2006329420A | 2006-12-07 | |||
| JPH109255A | 1998-01-13 | |||
| JP2008163995A | 2008-07-17 | |||
| JP2001146596A | 2001-05-29 | |||
| JP2008185062A | 2008-08-14 | |||
| JP2006329420A | 2006-12-07 | |||
| JPH109255A | 1998-01-13 | |||
| JP2008163995A | 2008-07-17 | |||
| JP2001146596A | 2001-05-29 |
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Hironori Honda
Toshimitsu Ichikawa