Assembly for a drug delivery device comprising: a housing ; a lead screw having a longitudinal axis, a distal end and a proximal end, the lead screw being rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing , the lead screw further including a thread , a drive nut threadedly engaged with and screwable along the lead screw thread ; a dial link connected with the drive nut and axially movable and rotatably fixed relative to the drive nut , where the dial link comprises a first portion of a feedback ratchet , and wherein the assembly is configured such that, during dose setting, the dial link is moved relative to the housing a first axial distance from a home position and the drive nut is moved along the thread a second axial distance and wherein, during dose delivery, the dial link is moved relative to the housing back toward the home position, and the drive nut and therewith the lead screw is advanced axially, and where the assembly comprises a second portion of the feedback ratchet , wherein the second portion is arranged and configured to engage the first portion such that, during dose delivery, the contact between said portions generates a feedback signal, characterized in that a) the thread of the lead screw forms the second portion of the feedback ratchet and the first portion of the feedback ratchet comprises a ratchet arm configured to engage the second portion of the feedback ratchet , wherein the ratchet arm forms the first portion of the feedback ratchet, or b) the drive nut comprises the second portion of the feedback ratchet . a housing ; a lead screw having a longitudinal axis, a distal end and a proximal end, the lead screw being rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing , the lead screw further including a thread , a drive nut threadedly engaged with and screwable along the lead screw thread ; a dial link connected with the drive nut and axially movable and rotatably fixed relative to the drive nut , where the dial link comprises a first portion of a feedback ratchet , and wherein the assembly is configured such that, during dose setting, the dial link is moved relative to the housing a first axial distance from a home position and the drive nut is moved along the thread a second axial distance and wherein, during dose delivery, the dial link is moved relative to the housing back toward the home position, and the drive nut and therewith the lead screw is advanced axially, and where the assembly comprises a second portion of the feedback ratchet , wherein the second portion is arranged and configured to engage the first portion such that, during dose delivery, the contact between said portions generates a feedback signal, characterized in that a) the thread of the lead screw forms the second portion of the feedback ratchet and the first portion of the feedback ratchet comprises a ratchet arm configured to engage the second portion of the feedback ratchet , wherein the ratchet arm forms the first portion of the feedback ratchet, or b) the drive nut comprises the second portion of the feedback ratchet . a) the thread of the lead screw forms the second portion of the feedback ratchet and the first portion of the feedback ratchet comprises a ratchet arm configured to engage the second portion of the feedback ratchet , wherein the ratchet arm forms the first portion of the feedback ratchet, or b) the drive nut comprises the second portion of the feedback ratchet . <EOS>