Ball bearing spindle drive with integral overload-prevention clutch, has single-piece peripheral casing with end nuts adjusting spring force on interleaved friction disc clutch

摘要

The casing (3) is of one-piece construction. Each axial thrust ring (11) slides axially on a casing internal surface (3a) and on an external circumferential surface (9a) of the ball spindle nut (9). The thrust rings (11) enclose the overload clutch (10). Two compression springs (13) are each preloaded by an external adjuster nut (5). A bearing (12) intervenes between each adjuster (5) and the circumferential surface (9a) of the spindle nut. Clutch friction discs (10a) attached to the casing, interleave with those (10b) of the ball spindle nut.