bearing bimetal which makes a material of a bearing is manufactured by forming an aluminum based bearing alloy plate for a bearing alloy layer by means of normal casting and rolling and overlapping the plate on a low carbon steel strip which forms a back metal layer to subject the same to roll bonding a slide bearing is fabricated by working the bimetal into a semi cylindrical shape bimetal is manufactured by spreading copper based bearing alloy powder on the low carbon steel strip which forms a back metal layer to subject the same to sintering at high temperature a slide bearing is fabricated by working the bimetal into a semi cylindrical shape electroplating is used to apply metallic overlay to an inner surface of the copper based alloy bearing as fabricated in the above manner 2 subsequently a method of forming a lubricant outer layer will be described the lubricant outer layer is formed by having a solid lubricant contained in a surface of a slide layer of the slide bearing as fabricated in the above manner in order to do this a solid lubricant powder which has a particle size of 0 5 to 80 u03bcm is projected by a compressed air at 0 5 to 1 0.