Disc brake, in particular for commercial vehicles, having a pressing device (22, 24) which is pressed against a brake disc for braking purposes, a hold-down spring (28, 30) in the form of a leaf spring which holds down the pressing device, and a hold-down bracket which has two rods (34, 36) and prestresses the hold-down spring against the pressing device, the hold-down spring - being of symmetrical configuration with regard to its transverse plane and having two spring limbs (44, 46) and a centre region between the two spring limbs, which centre region extends radially to the outside (in a positively locking manner) between the two rods of the hold-down bracket, - the two spring limbs having in each case one opening (48, 50), into which in each case one projection (35, 38) on the pressing device extends, - the spring limbs in each case having - a first region (52, 54), against which in each case one rod of the hold-down bracket bears such that it holds it down, and - a second region (56, 58) which bears against the pressing device such that it holds it down, the first regions of the spring limbs being held at a spacing from the pressing device in the rest state, the springs limbs first of all running radially to the outside from the first region (52, 54) towards the second region (56, 58), and the hold-down spring (28, 30) surrounding the two rods (34, 36) of the hold-down bracket in each case in a trough-like manner, the two first regions (52, 54) of the spring limbs (44, 46) forming the respective bottom of the trough, characterized in that the trough is not symmetrical, by the wall height of the trough on the side of the centre region corresponding in each case approximately to the diameter of the respective rod (34, 36), and the wall height of the trough on the side which faces away from the centre region being at most half as high. - being of symmetrical configuration with regard to its transverse plane and having two spring limbs (44, 46) and a centre region between the two spring limbs, which centre region extends radially to the outside (in a positively locking manner) between the two rods of the hold-down bracket, - the two spring limbs having in each case one opening (48, 50), into which in each case one projection (35, 38) on the pressing device extends, - the spring limbs in each case having - a first region (52, 54), against which in each case one rod of the hold-down bracket bears such that it holds it down, and - a second region (56, 58) which bears against the pressing device such that it holds it down, the first regions of the spring limbs being held at a spacing from the pressing device in the rest state, the springs limbs first of all running radially to the outside from the first region (52, 54) towards the second region (56, 58), and - a first region (52, 54), against which in each case one rod of the hold-down bracket bears such that it holds it down, and - a second region (56, 58) which bears against the pressing device such that it holds it down, the first regions of the spring limbs being held at a spacing from the pressing device in the rest state, the springs limbs first of all running radially to the outside from the first region (52, 54) towards the second region (56, 58), and