Disclosed is a motor mount, in particular for a motor-driven fan unit of a fan for a vehicle heating, ventilating and/or air conditioning system, including two coaxial rings of which an inner ring is capable of receiving one or more elements of the motor and an outer ring is capable of being attached to a housing constituting a structural element, and an uncoupling element positioned between the coaxial rings. The uncoupling element forms at least one radial stop capable of limiting a radial relative movement, in a plane normal to the common axis of the two rings, of one of the two rings with respect to the other.