PLANETARY GEAR FOR AUTO TRANSMISSION

摘要

PURPOSE: An auto transmission planetary gear is provided to assembly is provided to combine a pinion shaft with a carrier without an additional fix pin by forming the fixing unit on the pinion shaft. CONSTITUTION: A carrier(52) is combined in the rotary shaft of the sun gear and is rotatable. A pinion shaft has a pinion gear(50) which is engaged with the sun gear and is rotatable. The pinion shaft comprises a fixing unit combined in the carrier. The fixing unit(54a) comprises a first screw thread inserted into the carrier. A second thread is formed on the mounting unit of the carrier. A first screw thread is combined with the second screw thread through splin-combination.