Planetary gear device carrier and planetary gear device

A planetary gear device, comprising:

• a first gear support part;
• a second gear support part;
• a plurality of beams disposed between the first gear support part and the second gear support part, wherein the beams rigidly connect the first gear support part and the second gear support part such that a gear housing space is formed between the first gear support part and the second gear support part;
• a gear support shaft disposed in the gear housing space, wherein the gear support shaft contacts both the first gear support part and the second gear support part;
• a planetary gear disposed in the gear housing space, wherein the planetary gear is rotatably mounted on the gear support shaft;
• and
• a sun gear disposed in the gear housing space at a center of the first gear support part and the second gear support part such that the sun gear and the planetary gear mesh, wherein the second gear support part defines a hole disposed at the center of the second gear support part that is sized to allow the sun gear to be inserted through the second gear support part into the gear housing space;
• wherein the first gear support part and the second gear support part define first and second openings in the first gear support part and second gear support part, respectively, that are coaxially aligned, wherein one of the first and second openings is configured to allow the gear support shaft to pass through the corresponding gear support part, and wherein the other of the first and second openings is configured to form a press fit on the corresponding inserted portion of the gear support shaft such that the gear support shaft is unable to rotate.