Planetary carrier i.e. ravigneaux gearset part, for use in e.g. planetary gears utilized in powertrain of vehicle to separate drive torques, has support portions occupying certain degrees of circular arc portion

摘要

The carrier (1) has multiple planetary bolts (4a, 4b) extended between two side plates (2a, 2b). The side plates are supported against each other in an axial direction in support portions (7) over seams (6a, 6b) such that receiving areas for planetary gears (5a, 5b) are formed between the support portions in rotation direction. The bolts with the gears are arranged in the areas. The support portions has small pitch circle diameter, where the support portions on a pitch circle of the bolts occupy less than 50 degrees of a circular arc portion.