A PINION GEAR CARRIAGE IN A PLANETARY GEAR MECHANISM

摘要

A pinion gear support carriage for a planetary gear arrangement in an automatic transmission includes a first lubrication conduit leading radially from a sun gear to the needle bearings of a plurality of pinion gear shafts. Pair of thrust washers between the pinion gear and the carriage frame have cut-outs at their centers that overlap to create subsidiary lubrication conduits between the first lubrication conduit and the needle bearings.