To prevent breakage of bolts or dropping of a liner fixed to the inner face of the drum of a crusher with bolts from a drum caused thereby.

Steel plates 7 each having a bolt hole 8 are welded to the positions for inserting bolts 3 for fixing the liner on the inner face 11 of the drum, recessed parts 6 allowing fitting of the steel plates 7 are formed on the attaching face of the liner 10 to the inner face 11 of the drum, and the liner 10 is fixed to the inner face 11 of the drum while fitting the steel plates 7 to the recessed parts 6. Thus, a force acting the liner 10 along the inner face 11 of the drum is received on the peripheral faces of the steel plates 7 to prevent acting on the bolts 3.