To provide a sleeve bearing device made of resin to reduce the generation of mechanical noise due to vibration of a shaft and a bearing through a simple structure without extremely reducing a clearance between the shaft and the bearing and be excellent in durability.

This bearing device comprises a non-rotary rotation central shaft 3; and a groove part 10 formed in the inner surface of a sleeve bearing 9 made of resin rotatably supported by the rotation central shaft 3 made of a metal or resin. By storing grease G applied during assembly, the grease G is stably fed therefrom to the clearance part 11 between the rotation central shaft 3 and the sleeve bearing 9 made of resin for a long time during rotation of the bearing, and the generation of noise is reduced and durability is improved.