Patent ID: 8943920
Filing Date: 2015-02-03
Classification: F16H,Y10T

Abstract:
1. A roller screw mechanism providing a screw, the mechanism comprising: an external thread, with a nut arranged around and coaxial with the screw, the nut having an internal thread, and with a plurality of rollers interposed between the screw and the nut and comprising flanks of the rollers interacting with the external and internal threads of the screw and the nut, and wherein the value of an opening angle (α, β) of flanks of at least one of the external and internal threads is greater than the value of the opening angle (μ) of the flanks of the rollers, wherein the value of the opening angle (α) of the flanks of the external thread of the screw is greater than the value of the opening angle (β) of the flanks of the internal thread of the nut.