Which is more accurate, the ball guide sleeve or the slider?

Strictly speaking, the slider is higher. The gap between the inner and outer rails of the ball in the bead box must be obtained. After a long time, the gap becomes larger and the inner and outer rails swing obviously, so it is difficult to maintain high accuracy. Model ball slide rail is used for drawers, etc.

Because there are no beads on the slider slide rail, there is no problem of large gap. Slide rail for S of general high-precision machine tools.

Of course, we can't generalize, it depends on where it is used.