Title:
SPINDLE DEVICE AND SPINDLE FOR MACHINE TOOL MAIN SHAFT
Document Type and Number:
WIPO Patent Application WO/2016/068212
Kind Code:
A1
Abstract:
The present invention relates to a spindle device that supplies a prescribed amount of a lubricant agent intermittently or continuously from a lubricant supply device (3) to a rolling bearing (2) via a supply pipe (4), wherein the lubricant includes a lubricating oil and wax and, when a liquefaction point, which is a prescribed temperature within a temperature range of 10-70 °C, is used as a boundary, assumes a liquid state when the liquefaction point is exceeded and assumes a semisolid state when at or below the liquefaction point, and the lubricant is transported from the lubricant supply device (3) in a semisolid state via the supply pipe (3), and is changed to a liquid state before the rolling bearing (2) and caused to flow into the bearing interior.
Inventors:
NAKAMURA SHINYA (JP)
INAGAKI YOSHIFUMI (JP)
INAGAKI YOSHIFUMI (JP)
Application Number:
PCT/JP2015/080455
Publication Date:
May 06, 2016
Filing Date:
October 28, 2015
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C33/66; C10M159/06; F16C37/00; F16N11/00; F16N39/02; C10N30/00; C10N40/02; C10N50/10
Foreign References:
| JPH1193957A | 1999-04-06 | |||
| JPS55152921A | 1980-11-28 | |||
| JPH11141559A | 1999-05-25 | |||
| JPH0326829U | 1991-03-19 | |||
| JPH0499500U | 1992-08-27 |
Other References:
See also references of EP 3214328A4
Attorney, Agent or Firm:
Eikoh Patent Firm, P. C. et al. (JP)
Patent business corporation glory patent firm (JP)
Patent business corporation glory patent firm (JP)
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