The present invention refers to a sliding bearing (10) comprising a back metal layer (12), a bearing layer (14) applied to the back metal layer (12), a diffusion barrier layer (16) applied to the bearing layer (14) and a tin-based overlay (18a) applied to the diffusion barrier layer (16), characterized in that the diffusion barrier layer consists of one pure nickel layer (16a) applied to the bearing layer (14) and one silver-based layer (16b) applied to the pure nickel layer (16a).