Title:
BALL SCREW AND SEAL USED THEREIN
Document Type and Number:
WIPO Patent Application WO/2015/079698
Kind Code:
A1
Abstract:
Provided are: a ball screw that more efficiently prevents the accumulation and scattering of excess grease within a nut; and a seal used therein. To this end, a grease reservoir section (33) that forms a space with respect to a screw shaft (10) is provided to the inner circumferential surface of a seal (30) that is provided to the end section of a nut (20) that is on the rear side in the movement direction of the ball screw. The grease reservoir section (33) opens on the outer circumferential surface of the seal (30) and is connected to a slot (34) that is formed on the outer circumferential surface of the seal (30).
Inventors:
MIYAZAKI KAZUNARI (JP)
MARUYAMA DAISUKE (JP)
MARUYAMA DAISUKE (JP)
Application Number:
PCT/JP2014/005940
Publication Date:
June 04, 2015
Filing Date:
November 27, 2014
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H25/24; F16H25/22
Foreign References:
| JP2007232051A | 2007-09-13 | |||
| JP2007255661A | 2007-10-04 | |||
| JPH10299854A | 1998-11-13 | |||
| JPH10205605A | 1998-08-04 | |||
| JP3692677B2 | 2005-09-07 |
Other References:
See also references of EP 3059469A4
Attorney, Agent or Firm:
MORI, Tetsuya et al. (JP)
Woods Tetsuya (JP)
Woods Tetsuya (JP)
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