Title:
BALL SCREW WITH BALL SPLINE
Document Type and Number:
Japanese Patent JP2010112518
Kind Code:
A
Abstract:
To provide a ball screw with a ball spline increasing load capacity in a ball spline part.
In the ball screw with the ball spline, a number of balls 5 for the spline arranged in a circulation passage of the ball for the spline (a main passage 18 and a return passage 19) is set so that a gap in a prescribed amount exists between the balls 5. A total gap amount G is set to be smaller than the dimension calculated by subtracting a ball diameter D of the ball 5 for the spline from a length L of a spline groove 7 between crossing parts 20 adjacent in an axial direction (GL-D).
Inventors:
WATANABE HAJIME
Application Number:
JP2008287527A
Publication Date:
May 20, 2010
Filing Date:
November 10, 2008
Export Citation:
Assignee:
JTEKT CORP
International Classes:
F16H25/22; F16C29/06; F16D3/06
Domestic Patent References:
| JP2004232666A | 2004-08-19 | |||
| JP2003269566A | 2003-09-25 | |||
| JPH05209663A | 1993-08-20 | |||
| JPS62165057A | 1987-07-21 |
Foreign References:
| US3046808A | 1962-07-31 |
Attorney, Agent or Firm:
Norihiko Hibi
Einosuke Kishimoto
Akira Watanabe
Matsumura Naoto
Einosuke Kishimoto
Akira Watanabe
Matsumura Naoto
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