Drum brake and brake shoe

A drum brake, in particular for commercial vehicles, comprising:

• a brake drum with an attaching region configured to arrange the brake drum on a wheel hub, and a shell region with a first contact face;
• and
• a friction lining with a second contact face which faces toward the shell region;
• the first and second contact face being curved along or in a radial plane;
• wherein the friction lining and the shell region are configured to move axially with respect to one another such that the movement takes place at least with a component in the axial direction, and wherein a curvature radii of the first and second contact faces along the radial plane are greater than along a pivoting plane.

A brake shoe of a drum brake for commercial vehicles, comprising:

• a lining carrier with an arrangement face which is curved along or in a pivoting plane about a rotational axis of the drum brake;
• and
• a friction lining which is arranged on the arrangement face;
• and
• wherein the friction lining includes a friction face which lies opposite the arrangement face and is curved along or in a radial plane, and wherein a curvature radius of the friction face along the radial plane is greater than along the pivoting plane.