'Satellite' roller screw takes a heavier load
Abssac's new Satellite roller screw, in common with any ball screw,
translates rotary into linear motion. However, in the Satellite
arrangement, the balls are replaced by threaded rollers, which are
constantly engaged with the threads of the screw. This results in a high
number of contact points, allowing the Satellite roller screw to support
heavier axial loads, size for size, compared with conventional ball
screws. When the screw turns, the Satellite rollers move as the lead on
the screw. The rollers do no move axially relative to the nut and are not
recycled. The device is suitable for applications requiring a high load
carrying capacity in a relatively confined space, and high speeds.