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Patent Searching and Data


Title:
BEARING DEVICE FOR ROBOT ARM JOINT PART, AND BALL BEARING
Document Type and Number:
Japanese Patent JP2006329420
Kind Code:
A
Abstract:

To receive a radial load, and an axial load and a moment load in both directions as a matter of course, and attain rigidity improvement, rotation accuracy improvement, cost reduction, torque reduction, heating reduction, and space saving.

The bearing device for the robot arm joint part is provided with the joint part 23 of an articulated robot arm provided with a linkage 21 composed of a plurality of links 21a-21d, and a rolling bearing incorporated in the joint part 23. A single row ball bearing 100 wherein a cross sectional aspect ratio B/H of an axial cross sectional width B and a radial cross sectional height H is less than 0.63 is used as the rolling bearing.


Inventors:
KATSUNO YOSHIAKI
Application Number:
JP2006115884A
Publication Date:
December 07, 2006
Filing Date:
April 19, 2006
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16C19/16; F16C19/18; F16C33/78
Domestic Patent References:
JP2001099144A2001-04-10
JP2004034226A2004-02-05
JP2001032848A2001-02-06
JPH09177792A1997-07-11
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu