Planetary Screw Assembly

The Planetary Screw Assembly PLSA from Bosch Rexroth comprises a screw with planets as the rolling elements. It serves to convert rotary motion into linear motion.

Planetary Screw Assemblies are designed to transmit high forces and extend the Screw Drives product portfolio at the upper end. Planetary Screw Assemblies are screw drives in which threaded rollers (the planets) are housed in a screw nut, their ends being lodged in discs with holes arranged around a pitch circle so that they rotate parallel to the axis of a special screw, causing the nut to move linearly along the screw.

The Bosch Rexroth Planetary Screw Assembly offers designers many opportunities to solve transport and positioning tasks in configurations with a driven screw.

• Repeatable accuracy for travel speeds of up to 1.5 m / sec
• 3 versions available: Cylindrical Single Nut with backlash or preload; Flanged Single Nut with backlash or preload; and Flanged Single Nut, split, with preload
• To facilitate ease of set-up, users can make use of the OEM’s CAD configurator 2D and 3D models of system applications can be created