Home : Planetary Roller Screw

Go beyond the performance of ball screw with our highly efficient Spiracon™ planetary roller screw. It is a unique concept, to meet unique needs.

Converting rotary motion to linear movement, the system consists of a multi-start screw with an involute thread form and a number of planetary rollers with annular grooves, which engage with the screw.

The rollers also engage with a grooved load bearing element, which transmits the load through roller thrust bearings, to the nut housing.

The rolling action results in a high efficiency mechanism, while the line contact and hardened and ground construction achieve a high dynamic load carrying capacity, together with almost no axial backlash or wear.