Planetary gear of planetary differential, has gear portions whose teeth are positively-engaged with each other at tooth gap, and planet portions that are arranged rotatably in pin axes and provided with storage areas of planet carrier

摘要

The planetary gear has the first and second gear portions whose first and second teeth are positively engaged with each other at a tooth gap. The teeth of the gear portions are respectively provided with a concavely-curved tooth flank profile and a convex curved tooth flank profile in the cross-section so that the in tooth flanks of the gear portions are contacted in the tooth contact. The planet portions (3,4) are arranged rotatably about pin axes (5,7) and are provided with the storage areas of a planet carrier (6).