| 摘要 |
An improved device for disposing roving in the form of overlying epicycloids inside a fixed box, provided with two sun gears and one planet gear, the planet gear being rotated by the sun gear which is rotated by a gear wheel, and another sun gear coaxial to the first sun gear, being rotated by a worm, wherein each epicycloid gear is centered and in case supported by three pairs of bearings disposed at 120 DEG to each other, the outer ring of the bearing coated with appropriate self-lubricating resin.
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