Title:
RETURN TUBE TYPE BALL SCREW
Document Type and Number:
Japanese Patent JP2002061731
Kind Code:
A
Abstract:
To smooth the flow of balls for a return tube type ball screw without using costly means for changing the shape of a plug-in portion of a return tube.
By setting the number of balls to be moved back, interposed between tongue portions 8 at both ends of the return tube 5, to be integer +0.5, a difference in ball speed between an inlet side and an outlet side is reduced.
Inventors:
NAKASEKI TSUGUTO
TAMOTO HIDEKI
TAMOTO HIDEKI
Application Number:
JP2000251276A
Publication Date:
February 28, 2002
Filing Date:
August 22, 2000
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H25/22; (IPC1-7): F16H25/22
Domestic Patent References:
JPS6249069A | 1987-03-03 | |||
JPS6335852U | 1988-03-08 | |||
JPH0221358U | 1990-02-13 | |||
JPH0355952U | 1991-05-29 | |||
JPH09310744A | 1997-12-02 | |||
JPH0152624B2 | 1989-11-09 | |||
JPS6249069A | 1987-03-03 | |||
JPS6335852U | 1988-03-08 | |||
JPH0221358U | 1990-02-13 | |||
JPH0355952U | 1991-05-29 | |||
JPH09310744A | 1997-12-02 | |||
JPH0152624B2 | 1989-11-09 |
Attorney, Agent or Firm:
Bunji Kamata (2 outside)