A parking brake according to an embodiment of the present disclosure includes a disk configured to rotate with a wheel of a vehicle, a carrier having a rotational shaft formed at one side, configured to advance and retract by an actuator toward an outer circumferential surface of the disk, and a friction pad coupled to the carrier to be rotatable about the rotational shaft, configured to pressurize or depressurize at least a portion of the outer circumferential surface of the disk in response to reciprocating motion of the carrier.

A brake actuator for a friction brake. The brake actuator includes a piston and a rotational-to-translational gearbox for converting a rotary motion of a drive into a linear motion of the piston. An angle compensation element for decoupling the translational component from transverse forces on the piston is arranged between a translational component of the gearbox and the piston.