A pinion gear carriage in a planetary gear mechanism.

摘要

A pinion gear support carriage (3) for a planetary gear arrangement in an automatic transmission includes a first lubrication conduit (14a, 2c, 2d) leading radially from a sun gear (14) to the needle bearings (5) of a plurality of pinion gear shafts (4). Pair of thrust washers (7, 8) between the pinion gear (6) and the carriage frame (3) have cut-outs at their centers that overlap to create subsidiary lubrication conduits between the first lubrication conduit and the needle bearings.