Compressed-air disc brake and pressure piece therefor

A vehicle brake (2, 102), in particular a utility vehicle compressed-air disk brake, the vehicle brake comprising:

• a brake caliper (4, 104),
• a pressure piece guide (8, 108) arranged in the brake caliper (4, 104), and
• a pressure piece (6, 106), wherein the pressure piece is guided in the pressure piece guide (8, 108) along a movement axis (10, 110),
• wherein the pressure piece guide (8, 108) defines a recess (12, 112), and the pressure piece (6, 106) has an outer contour (14, 114) corresponding to the recess,
• wherein the pressure piece guide (108) or the outer contour (14) of the pressure piece is divided, on both sides of the pressure piece (6), into a plurality of curved, mutually spaced partial surfaces (16, 116) defining separate curved sections;
• wherein the outer contour comprises projecting ear portions on each lateral side of the pressure piece that project outwardly from an overall perimeter of the pressure piece and are laterally outermost portions of the pressure piece, wherein the projecting ear portions defines a generally semi-circular outer surface shape, wherein the separate curved sections extend along the outer surface shape of the projecting ear portions at an interface between the projecting ear portions and the corresponding recess that receives the projecting ear portions.