Ball thread drive with ball roller spindle

摘要

A nut is displaceable along the spindle (1), which can also move between two rolling balls. The spindle is rotatably driven for the axial displacement of the nut and is mounted in a fixed bearing (1), consisting of parallel, enclosed ball tracks (16) circulating round the spindle, and a bearing housing (11). The spindle retaining housing base has profiled grooves (13), corresponding to the ball tracks, between which and the latter balls are located. Several circulating, enclosed ball tracks of the spindle are differently spaced to one profiled groove of the bearing housing.