A gearing, in particular a coaxial gearing or a linear gearing, comprising a tooth system, a tooth carrier having guides, teeth received within the guides for engagement with the tooth system, wherein the teeth are mounted within the guides to be displaceable in the direction of their longitudinal axis relative to the tooth carrier, a cam disk for driving the teeth along the respective longitudinal axis of the teeth, wherein at least one of the teeth respectively has a tooth flank area having tooth flanks, and a tooth body, wherein, between the tooth body and the tooth flanks, one shoulder respectively is provided, which projects back from the tooth body to the inside towards the tooth flank.