A tool with a linear actuated working implement, comprising,
- a. an outer housing with a front end;
- b. a geared planetary roller screw disposed inside said outer housing, said roller screw includes:
- a fixed outer race axially aligned inside said outer housing, said outer race includes a plurality of internal non-helical grooves;
- a plurality of axially aligned grooved rollers radially aligned over the inside surface of said outer race and rotated as a set around said outer race, each said grooved roller includes external non-helical grooves that mesh with said non-helical grooves on said outer race;
- a cylindrical nut body axially aligned with and located inside said grooved rollers, said nut body includes a plurality of external non-helical threads that mesh with said non-helical grooves on said grooved rollers, said nut body includes a plurality of internal helical threads, said nut body configured to rotate inside said outer housing and not move longitudinally inside said outer housing;
- a plurality of inner rollers axially aligned and located inside said nut body, each said inner roller includes external helical threads that mesh with said internal helical threads on said nut body, each said inner roller includes a set gear teeth located at each end that engage two ring gears aligned transversely inside said outer housing with a plurality of teeth that mesh with said gear teeth on said inner rollers;
- a threaded shaft axially aligned with said outer race, said threaded shaft includes a plurality of helical external threads that mesh with said helical threads on said inner rollers, said threaded shaft includes a proximal end and a distal end;
- a torque tube axially aligned with said outer race, said torque tube includes a narrow neck coaxially aligned around said proximal end of said threaded shaft and a wide body that at least partially extends around and coupled to said nut body, whereby when said torque tube is rotated, said nut body rotates inside said grooved rollers causing said grooved rollers to individually rotate around said threaded shaft causing said threaded shaft to move axially with respect to said nut body;
- c. an electric motor;
- d. a gearbox disposed between said torque tube and said electric motor and configured to adjust the RPM output from the electric motor;
- e. a tool implement linkage coupled to said distal end of said threaded shaft;
- f. a linear activated tool implement coupled to said tool implement linkage extending from said front end of said outer housing;
- and,
- g. an electricity source connected to said electric motor.