Brake pad

1 . A brake pad for a disk brake, comprising:

a backplate; and

a friction layer with a friction surface configured for engaging with a brake disk,

wherein the friction layer has a pressure groove, the pressure groove extending from a leading edge of the friction layer to a center of the friction surface,

wherein the pressure groove is delimited by an outer circumferential side on the friction surface, an inner circumferential side on the friction surface, and a trailing side, and is open on a leading side and closed on the trailing side, the outer circumferential side and the inner circumferential side formed along in an extension direction of the pressure groove,

wherein at least a portion of a base surface of the pressure groove has a flat surface with a constant depth in the extension direction of the pressure groove, and

wherein the pressure groove has a chamfered side area that slopes from at least one of the inner circumferential side or the outer circumferential side toward the base surface.

2 . The brake pad according to claim 1 , wherein the pressure groove extends over at least 10% or at least 20% or at least 30% or at least 40% of a length of the friction surface, the length of the friction surface being measured from the leading edge to a trailing edge.

3 . The brake pad according to claim 1 , wherein the pressure groove has a width of at least 10% or at least 15% of a width of the friction surface and/or at most 50% or at most 40% of a width of the friction surface, the width of the friction surface being measured from an inner circumferential edge to an outer circumferential edge.

4 . The brake pad according to claim 1 , wherein at least a portion of the base surface of the pressure groove is parallel to the friction surface.

5 . The brake pad according to claim 1 , wherein at least a portion of the base surface is sloped with respect to the friction surface.

6 . The brake pad according to claim 1 , wherein the pressure groove is arranged centrally between an outer circumferential edge and an inner circumferential edge of the friction layer.

7 . The brake pad according to claim 1 , wherein the pressure groove extends in a tangential direction from the leading edge towards a trailing edge.

8 . The brake pad according to claim 1 , wherein the pressure groove extends at an angle with respect to a tangential direction, wherein the pressure groove extends from the leading edge

angled circumferentially outward, or

angled circumferentially inward.

9 . The brake pad according to claim 1 , wherein the pressure groove extends over at most 80% or at most 70% or at most 60% or at most 50% of a length of the friction surface, the length of the friction surface being measured from the leading edge to a trailing edge.