| 摘要 |
PURPOSE:To improve the divided positioning accuracy of planet rollers so as to decrease generation of their skewing, by integrally forming a pair of shaft bearing parts supporting shafts in both ends of the planet roller in carriers. CONSTITUTION:An input shaft 1, carriers 2 and both inscribed rings 4 and 5 are coaxially arranged, and a planet roller 3, whose shaft parts 31 in its both ends are turnably supported by shaft holes 21 of the carriers 2, is plurally arranged at an equal space around the input shaft 1 between the input shaft 1 and the inscribed rings 4 and 5. The carrier 2, comprising two members of equal shape but directly supporting the shafts 31 in the both ends of the planet roller 3 in addition to the integral construction directly connecting the both members to each other, never causes the amount of dislocation from the shaft 31 in one end of the planet roller 3 to increase, accordingly skewing of the planet roller 3 is also decreased. |
