Patent ID: 8733517

Claim:
A brake disc having a rotation axis, comprising: a support carrier, destined to be coupled to a wheel hub of a vehicle; a braking band, destined to co-operate with a disc brake calliper, comprising two flanges connected by a plurality of connection elements which define ventilation channels for the passage of a flow of cooling air over the braking band; and at least one drive element able to connect the support carrier and the braking band to each other so as to transmit the braking forces exchanged by the braking band and the calliper to the hub; wherein at least one connection element has a resistant section variable in an axial direction parallel to the rotation axis, said resistant section being measured in an area essentially parallel to the direction of the air flow inside the ventilation channels; the connection element having a median resistant section, measured in relation to an area substantially parallel to the direction of the air flow inside the ventilation channels of the braking band; the connection element having a connection resistant section on an inner lateral face of a respective flange, said connection resistant section being measured in relation to an area essentially parallel to the direction of the air flow inside the ventilation channels of the braking band; and the resistant section of the connection element progressively increasing as it moves from the median resistant section towards the respective connection resistant sections.