Patent ID: 8607939

Claim:
A braking device for a motor vehicle, comprising: a brake disk; a brake caliper fitting around the brake disk; and two brake pads, which rest against the brake disk for the purpose of braking; a motor-driven ball screw, which is capable of moving one of the two brake pads and arranged within the brake caliper, having a threaded spindle and a threaded nut; and a piston, which is in contact with the one of the two brake pads, the piston being a hollow cylinder, a first conical guide surface being disposed on the threaded nut and a second conical guide surface being disposed on the piston, the threaded nut disposed at least partially within the hollow cylinder with the first conical guide surface and the second conical guide surface resting against one another, and at least one of the first conical guide surface and the second guide surface being crowned in such a way that the piston can be tilted relative to the threaded nut, wherein the threaded spindle is mounted on the brake caliper in such a way that the threaded spindle can be tilted relative to the brake caliper.