20150027257 | BALL SCREW - A ball screw includes a screw, a nut and a plurality of balls. The nut is slidingly disposed on the screw and includes a nut body and at least one end assembly. The end assembly includes an end circulation member, a dust-proof member and a fastening member. The fastening member and the end circulation member are disposed on the opposite sides of the dust-proof member. One side of the fastening member includes a plurality of projections, and the other side of the fastening member includes a plurality of indentations corresponding to the projections. | 01-29-2015 |