| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw capable of suppressing peeling-off and having long service life. SOLUTION: This ball screw is constituted in such a way that mutually opposing spiral screw grooves are formed on an outer peripheral face of a screw shaft and an inner peripheral face of a nut, many balls are arranged between them so as to roll freely, and grease compound is sealed. The grease compound contains corrosion inhibitor of 0.1 to 10 mass% of the whole amount of the grease compound. COPYRIGHT: (C)2004,JPO&NCIPI |
