Planetary gear assembly for transmission system, has lubricant channel formed in sun gear shaft, for supplying lubricant to first bearing received by coupling element carrier

摘要

The planetary gear assembly has a coupling device (5) for selective coupling of planetary carrier (P) to axis (X) of rotatable transmission. The coupling device comprises a coupling element carrier (6) which is connected to the planetary carrier. A first bearing (L1) is received by the coupling element carrier, to support sun gear shaft (14) radially against the coupling element carrier. A lubricant channel (14b) is formed in the sun gear shaft, for supplying lubricant to first bearing.