| 摘要 |
A cycle component of a ball screw and the ball screw are provided to separate a cycle component into the first and second separation surfaces, thereby preventing twist of a bonding surface of separation members. A ball screw comprises a screw shaft(9), a nut member(10), a plurality of balls(11) and a cycle component(12). A spiral ball rolling groove(9a) is formed on the screw shaft. A spiral loaded rolling groove(10a) is formed in the nut member. A plurality of balls rolls between the spiral loaded rolling groove and the spiral ball rolling groove. The cycle component circulates the ball rolling on the spiral ball rolling groove of the screw shaft. The cycle component includes a central part(12a) and a pair of leg parts(12b). The leg parts are formed in both sides of the central part. A central line of an inner circumference of the leg parts is inclined in a different direction about a central line of the inner circumference of the central part. |
