Title:
BALL SCREW DEVICE
Document Type and Number:
Japanese Patent JP2005180558
Kind Code:
A
Abstract:
To reduce the vibration and noise of a ball screw device by restraining looseness of a circulating piece.
In this ball screw device 10, the circulating piece 18 forming a circulating passage 20 of a ball 15 connecting between both screw grooves 11, 13 and a ball return passage 16 with the cutout 17 is fitted and fixed to the cutout 17 formed at the end of a nut 14 through a C-type stop ring, and a number of balls 15 are circulated at infinity between both screw grooves 11, 13, in the ball circulating passage 20 and the ball return passage 16. In the ball screw device 10, the circulating piece 18 and the C-type stop ring 21 are integrally formed by injection molding.
Inventors:
KAGOTA YOSHINARI
MATSUDA YASUYUKI
MATSUDA YASUYUKI
Application Number:
JP2003421414A
Publication Date:
July 07, 2005
Filing Date:
December 18, 2003
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H25/22; F16H25/24; (IPC1-7): F16H25/22; F16H25/24
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu