Tandem brake booster

摘要

An interconnecting structure between a hub and a nut of a tandem brake booster is disclosed. The nut is formed with a plurality of recesses while the hub is formed with anti-rotation locks extending radially outward for engagement with the recesses to prevent a rotation of the nut relative to the hub, and also formed with stops extending radially inward for abutment against an end of a push rod which is received within the hub to prevent such end from being withdrawn from the hub.