Patent ID: 6663286
Filing Date: 2003-12-16
Classification: F16C

Abstract:
A method of determining a raceway surface length (2Ux) of a movable member and a diameter (Da) of a rolling body of a motion rolling guide device which comprises: a track rail; a movable member having a race way surface opposing to the track rail; and rolling bodies disposed between the raceway surface and the track rail; wherein the rolling bodies roll in accordance with the movement of the movable member with respect to the track rail and a relative position of the rolling bodies ad the movable block varies,wherein the raceway surface length (2Ux) is substantially equal to integral multiples of a retainer pitch (&kgr; Da), wherein 2Ux is the surface length of raceway surface of the movable member, and if the motion rolling guide device has a retainer, &kgr; Da is a retainer pitch, &kgr; Da is a (1.000 &ap;1.005) Da, where Da is the diameter of the rolling body and &kgr;has a value in the range of 1.000 to 1.005.