Abstract: A track roller is provided, in which a bushing case and a roller body are integrated inside the track roller, to accordingly facilitate an assembly. Also, since a lubricant path is formed in the roller body, a lubrication work is improved. The track roller having a pair of left and right bushings inserted on the central protrusion of the central axis and which is rotatably fixed, includes a bushing case inserted on an outer circumferential surface of one side of the bushing, a roller body provided in the outer circumferential surface of the bushing case and formed in a shape corresponding to the bushing, in which an extension is formed on the other side of the bushing and provided in the outer circumferential surface of the bushing, and a combiner for fixing the bushing case and the roller body so that they are not dismantled from each other. As such, the number of components is reduced to thereby facilitate an assembly and shorten an assembly time, which enhances an economical efficiency.