Crushing roller, solid fuel crushing device, and method for manufacturing crushing roller

The crushing roller is provided with an annular roller part (49), the roller part is embedded into the outer peripheral part of the journal shell from the outer side, and the solid fuel is crushed between the roller part and the crushing table. The roller section (49) has: a first portion (49A); and a second portion (49B) which is arranged in parallel with the first portion (49A) along the axial direction and is fixed to the first portion (49A). The first portion (49A) has: a first base portion (51A) fitted to the outer peripheral portion of the journal housing from the outside; and a first ceramic part (52A) which is provided on the outer peripheral surface of the first base part (51A) and which has better wear resistance than the first base part (51A). The second portion (49B) has: a second base portion (51B) fitted to the outer peripheral portion of the journal housing from the outside; and a second ceramic part (52B) which is provided on the outer peripheral surface of the second base part (51B) and which