BRAKE DEVICE

A brake device includes a brake pad, a pad thruster connected to the brake pad to linearly move the brake pad, and a caliper body provided with a cylinder space allowing the pad thruster to be seated therein. The pad thruster may include a conversion assembly configured to convert rotational motion into rectilinear motion, and at least two pistons connected to one end of the conversion assembly. The conversion assembly is seated in the cylinder space, and the at least two pistons are positioned outside of the cylinder space.