| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling device capable of holding environment in a clean condition without causing fluctuation of magnetic field when operating. SOLUTION: In a ball screw 10 provided with a screw shaft 11 having a screw channel 12 on an outer peripheral face, a nut 14 having a screw channel 16 on an inner peripheral face, and a plurality of balls 13 mounted in a rolling body passage formed between both of these screw channels 12 and 16 so as to roll freely to move either of the screw shaft 11 and the nut 14 linearly and relatively for the other in the direction of axial line of the screw shaft 11 by rotation operation of the screw shaft 11 or the nut 14, at least either of the screw shaft 11 and the nut 14 is constituted by antibacterial and funginert resin containing zinc pyrithion. COPYRIGHT: (C)2006,JPO&NCIPI
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