Sliding bearing

A sliding bearing is provided to enable suppressing peeling of a resin layer, which is bonded to a bearing alloy, at the time of initial operation. 3 to 15 volume percent of film strength control particles (4) having an average particle size of 0.05 to 0.7 µm is added to a resin layer (2), of which a base resin is composed of one or more of PAI resin, PBI resin, and PI resin, whereby shearing stress at an interface of the resin layer (2) with the bearing metal can be relaxed by putting that shearing stress, which is generated in the resin layer (2) upon contact with a rotating shaft, in an wear configuration, in which minute shear pieces generate in the resin layer (2). Further, while it is estimated that a decrease in strength of the resin layer (2) caused by addition of film strength control particles (4) leads to a decrease in wear resistance, a wear configuration, in which the film strength control particles (4) are controlled in surface area and minute shear pieces generate, is adopted whereby it is possible to obtain a highly durable resin layer being conversely small in wear loss, sufficient in thermostability and wear resistance, and susceptible to no peeling at the time of initial operation.