| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ball screw for being used by being subjected to a preload, which has a structure capable of balancing cooling efficiency and easiness of assembly/disassembly.SOLUTION: A plurality of nuts are provided on one screw shaft, and each of the nuts comprises a part that is a cooling mechanism and that has a channel for the passage of a coolant provided as each independent path. Furthermore, in the case of a ball screw for being used by being subjected to a preload by an action between the nuts, each nut is provided with a channel for the passage of the coolant, and the channels are configured so that the coolant can be independently circulated through each nut.</p> |
