Brake band for a disc of a disc brake, - said brake band extending around a rotation axis (X-X) for the disc and - said brake band and said disc defining an axial direction (A-A) coinciding with or parallel to said rotation axis (X-X), a radial direction (R-R) that defines a radially outward direction when going away from said rotation axis (X-X), as well as a radially inward direction when approaching said rotation axis (X-X), as well as a circumferential direction (T-T) perpendicular to said axial direction (A-A) and said radial direction (R-R); - said brake band being made from a first material configured for receiving a braking action exerted by pads on braking surfaces (4, 5); - said brake band having at least one coupling extension configured for coupling with a bell, said bell being configured for coupling the disc with a hub of a vehicle; - said coupling extension of the brake band being formed integral, or in a single piece, with said brake band; - said coupling extension of the brake band is suitable to form a geometric coupling with said bell to transmit the braking action from the band to the bell; - said geometric coupling being obtained through the fusion preferably of the bell on the brake band without the use of another connecting component between the band and the bell, said bell being made from a second material different from said first material of the band; - said second material of the bell having a different melting point with respect to the melting point of the first material of the brake band; - said geometric coupling having, circumferentially spaced, first axial teeth, or toothing, of the band that extend axially suitable to be tightly received in first axial seats of the bell; characterised in that - said geometric coupling has, circumferentially spaced second radial teeth, or toothing, of the band that extend radially from the band and are circumferentially offset with respect to said first axial teeth that extend substantially radially and are suitable for being tightly received in second radial seats defined by the bell. - said brake band extending around a rotation axis (X-X) for the disc and - said brake band and said disc defining an axial direction (A-A) coinciding with or parallel to said rotation axis (X-X), a radial direction (R-R) that defines a radially outward direction when going away from said rotation axis (X-X), as well as a radially inward direction when approaching said rotation axis (X-X), as well as a circumferential direction (T-T) perpendicular to said axial direction (A-A) and said radial direction (R-R); - said brake band being made from a first material configured for receiving a braking action exerted by pads on braking surfaces (4, 5); - said brake band having at least one coupling extension configured for coupling with a bell, said bell being configured for coupling the disc with a hub of a vehicle; - said coupling extension of the brake band being formed integral, or in a single piece, with said brake band; - said coupling extension of the brake band is suitable to form a geometric coupling with said bell to transmit the braking action from the band to the bell; - said geometric coupling being obtained through the fusion preferably of the bell on the brake band without the use of another connecting component between the band and the bell, said bell being made from a second material different from said first material of the band; - said second material of the bell having a different melting point with respect to the melting point of the first material of the brake band; - said geometric coupling having, circumferentially spaced, first axial teeth, or toothing, of the band that extend axially suitable to be tightly received in first axial seats of the bell; characterised in that - said geometric coupling has, circumferentially spaced second radial teeth, or toothing, of the band that extend radially from the band and are circumferentially offset with respect to said first axial teeth that extend substantially radially and are suitable for being tightly received in second radial seats defined by the bell.