Brake device

The invention relates to a brake device for a vehicle, in particular capable of determining a high heat exchange efficiency, comprising a brake band (1) of a brake disc of a disc brake, the brake band (1) comprising two opposite plates (3, 4) connected by a pin (13, 14); each of the pins (13, 14) having a radial pin extension (15, 16), the radial pin extension (15, 16) having a smaller amount than the radial ventilation duct extension (10); wherein, close to the inner belt edge (11), at least one first inclined projection (17) protrudes towards the interior of the ventilation duct (7) but does not reach the opposite inner surfaces (9, 8), the first inclined projection having a first projection direction (B1) inclined with respect to the radial direction (R-R) and with respect to the circumferential direction (C-C), the first projection direction (B1) having a second projection direction (B2) inclined with respect to the radial direction (R-R) and with respect to the circumferential direction (C-C), and the se