| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw device which reduces time and labor for processing a rust preventive oil before installation to achieve improvement of the production efficiency, and to provide a rust preventive method of a ball screw.SOLUTION: Grease for rust prevention fills a space between a first member 2 and a second member 4 when a direct-acting unit 1 is shipped. The seal member 6 is formed so as to allow lubrication grease supplied in an automatic oil supply method to push the grease for the rust prevention to outside of the first member 2 through a space between the seal member 6 and the second member 4.SELECTED DRAWING: Figure 1 |
