| 摘要 |
<p>PURPOSE:To miniaturize a rear wheel steering actuator, to simplify the structure thereof, and to prevent the reliability from being reduced. CONSTITUTION:An electric coil 2 is arranged on the outside, and a rotor on the inside for facilitating heat radiation. One bearing 10 for supporting the rotor and the electric coil 2 are integrally fixed to a casing 1 at the time of the mold formation of resin 3. At the same time, a ring gear 12 is formed by the mold formation of the resin 3. Further, by the mold formation of resin, one sun gear 11a is integrally made up with a rotor 4. The slipping of the resin member 3 is prevented by providing the casing 1 with projected parts and recessed parts 1a, 1b. On the rotor, a permanent magnet 13 other than a driving one 5 is provided.</p> |
