SLIDING BEARING

A sliding bearing 1 includes a bearing alloy layer 2 which has annular grooves 2a and a ridge portion 2b formed thereon and an overlay layer 3 which is made from a low-friction synthetic resin and covers the surface of the bearing alloy layer, wherein the overlay layer 3 forms an uneven face so that the surface of the overlay layer 3 follows an uneven face of the surface of the bearing alloy layer 2. The ridge portion 2b is structured so as to be plastically deformed when a load is applied to the sliding bearing from a rotary shaft, and thereby be capable of making the sliding bearing conform to the rotary shaft. In comparison with a conventional technology which makes the overlay layer 3 made from the low-friction synthetic resin worn and the sliding bearing conform to the rotary shaft, the sliding bearing according to the present invention can promptly make the sliding bearing conform to the rotary shaft because of being capable of making the ridge portion 2b plastically deformed and conform to the rotary shaft.