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Planetary roller screw drive for converting relative rotation between nut and screw into axial relative displacement, has planetary units whose end sections are arranged on sides of middle-portion, where one of sections is supported on nut
Planetary roller screw drive for converting relative rotation between nut and screw into axial relative displacement, has planetary units whose end sections are arranged on sides of middle-portion, where one of sections is supported on nut
The drive has a threaded spindle (1) provided with a screw thread (16). Multiple planetary units (3) are provided with feed grooves (13) and guide grooves (14, 15), which are in intervention with respective nut-side grooves (6, 7). The feed grooves are in intervention with the screw thread. Each planetary unit comprises a middle portion (10) provided with the feed grooves and end sections (11, 12) that are arranged on two sides of the middle-portion. One of the end sections is axially and radially supported on the nut, where the nut is made of a metal sheet using a reforming procedure.
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