Abstract: There is described a copper-based sliding layer comprising a matrix of copper or a copper alloy with softer metallic inclusions of at least 10 wt-% which form particles having sectional areas separate from each other with respect to an observation plane parallel to the layer. To combine favorable strength values with good tribological properties, it is suggested that when adding up the sectional areas of the particles starting with the smallest sectional area and proceeding according to ascending area size the sectional area (F.sub.50) of that particle which completes the subtotal of the sectional areas up to its own area size to 50% of the final total corresponds to a maximum of ten times the sectional area (F.sub.5) of the particle completing the subtotal to 5% of the final total, but at least one fifth of the largest individual sectional area (F.sub.100).

Abstract: In the described process of manufacturing a sliding surface bearing comprising a backing shell of steel, a bearing metal layer on the backing shell, and a copper-containing sliding surface layer, which has been electrodeposited over said bearing metal layer, the backing shell is provided throughout its rear surface, which constitutes the rear surface of the bearing, with a tin-containing corrosion-resisting layer after the sliding surface layer has been deposited. To prevent a separation of the corrosion-resisting layer, it is proposed that the rear surface of the bearing is covered with an electrodeposited nickel layer before the sliding surface layer is deposited on the bearing metal layer or on an intermediate layer of nickel provided on the bearing metal layer.