ACTUATOR HAVING LOAD WEIGHTING MECHANISM

摘要

An actuator having a load weighting mechanism is disclosed. The actuator has a screw and a nut mounted around the screw and connected with a driving shaft. The driving shaft supports a load. When moving along the screw, the nut displaces the driving shaft forward and backward. The screw has a pair of thrust bearings for bearing the load, and at least one load weighting unit installed between the pair of thrust bearings for weighting the load.