Main Characteristics

The new ball return further expands the extensive range of Steinmeyer ballscrews. It uses ball deflectors guiding the balls into a return channel spanning the whole nut length, thus forming a ball circuit consisting of several turns. The ball deflectors used are designed for guiding balls on a tangential path away from the screw. The two-piece deflectors are made from precision milled steel and use a complex geometry that minimizes friction to an extent that allows much higher speeds with yet less wear than conventional external ball returns. Noise and vibration levels are reduced considerably, and life is increased. Through an increased number of load carrying balls the load capacity and rigidness is increased over conventional designs, with yet more compact nut dimensions. As a standard, Steinmeyer Ultraspeed ballnuts have two-start threads. Their unique design allows for two-point contact preload with pitch offset within a single nut. This enables even more space saving design.