Differential gear for a timepiece movement

摘要

The gear has wheels that are rotatably mounted with respect to a central shaft and provided with a toothing (42) arranged to mesh with satellite (26) borne by a satellite carrier. The wheels and the shaft are comprised to engage with mobiles of watch movement. The carrier is secured in rotation with the shaft by a friction device comprising a tube having portions arranged opposing the shaft and carrier. An independent claim is included for timepiece.