BELL FOR BRAKING DISC AND DISC FOR A DISC BRAKE

摘要

A disc for a disc brake, which has usually good cooling efficiency together with good resistance to wear ant to thermal/mechanical stresses, comprises a braking band (12), for example, a ventilated braking band, provided with a plurality of radial teeth (26) formed along an inner portion and alternating with respective recesses (28). A bell (14) has a plurality of radial teeth (34) formed along an outer portion and alternating with respective recesses (36). The braking band (12) and the bell (14) define a rotation axis (15) and are connected to one another by a form fit between the teeth (26, 34) of one and the respective recesses (28, 36) of the other. A recess (36) of the bell (14) is defined at least partially by a wall (38) suitable for driving the braking band and has a length (L) greater than the thickness (S) of the teeth of the bell, the length (L) and the thickness (S) being measured in a direction parallel to the rotation axis (15).