Planet carrier assembly

The utility model discloses a planet carrier assembly, which relates to the technical field of gears, and comprises a planet carrier shell, one surface of the planet carrier shell is sunken towards the other opposite surface to form a groove, a plurality of planet carrier shafts are fixed at the bottom of the groove, bearings are arranged around the planet carrier shafts, gears are arranged around the bearings, and the planet carrier shell and the gears are fixed on the planet carrier shafts. A first check ring is arranged between the first annular groove and the second annular groove, the third annular groove is formed by sinking the outer wall of the planet carrier shaft towards the axis of the planet carrier shaft, the bearing is located between the third annular groove and the bottom of the groove, and a second check ring is arranged in the third annular groove. The whole inner ring of the bearing is matched with the planet carrier shaft, the bearing load is high, and the bearing is prevented from being d