| 摘要 |
The actuator has a motor (2) and drive (3) including a screw threaded (20), rotor (13) whose thread is complementary to the control screw thread. The motor driven rotating part is supported on bearings (17,18) formed from stamped metal sheet. in the shape of 4 point contact axial bearing. races The races are arranged on each axial side of the screwed part so as to guide the rotating part.. The ballbearing races (26,27,28,29) are integrated in the rotating part and parts of the body (16) or housing or cover (15) of the actuator. The rotor is in the form of a screw or a threaded ring engaged into a linear displacement screw (14). The bearing races are fixed on the housing or cover by clipping, molding, welding or gluing. . |
