This invention relates to a self-lubricating bearing and a method of producing
the same. The self-lubricating bearing includes a main body and a plurality of
solid lubricant pieces. The main body has an inner annular wall surface, an outer
annular wall surface, and a through hole defined by the inner annular wall surface.
The solid lubricant pieces are embedded in a plurality of depressions of the inner
annular wall surface by coating and grinding and each has a radial inside annular
surface in a curve conforming to that of the inner annular wall surface. The forming
of the depressions without radially penetrating through the outer annular wall
surface to make the solid lubricant pieces embedded into the depressions with less
amount by coating and grinding allows the self-lubricating bearing to reduce the
material cost, and keep its structural strength and lubricating effect simultaneously.
