| 摘要 |
PURPOSE:To prevent friction loss of a worm transmission gear by rotatably supporting rollers on a lot of shafts mounted on a helix of a rotor. CONSTITUTION:A lot of support shafts 3 are projected at equal intervals on a helix H of a shaft member 1 fixed to a rotary shaft 2. A roller 7 is rotatably mounted on each of the shafts 3. The thus constructed roller screw S is engaged with projetions 12 of a rail member 11 to conduct power transmission. |
