| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a means reducing friction resistance in a linear motion actuator such as a linear guide device. <P>SOLUTION: In a linear guide device 1 which is provided with: a rail 2 having rail track grooves 4 each formed in a Gothic arc shape on an outer shape surface; a slider 5 having slider track grooves 7 each formed in a Gothic arc shape and facing the rail track grooves 4 on an inner shape surface; load paths 10 formed with the rail track grooves 4 and the slider track grooves 7; and a plurality of balls 8 rolling in the load paths 10, and in which the balls 8 are brought into point contact with the rail track grooves 4 and the slider track grooves 7, contact angles α between the balls 8, and the rail track grooves 4 and the slider track grooves 7 are set smaller than 45°. <P>COPYRIGHT: (C)2009,JPO&INPIT |
