PURPOSE: To realize a device which has good workability in an assembly work and a repair work, and can reduce material cost, processing cost, and assembly cost.

CONSTITUTION: In a dovetail groove 3 formed on the surface of an abrasion resisting piece in stalling liner 2, abrasion resisting pieces 4a and 4b whose sections in the center axial direction of the dovetail groove 3 are a trapezoid in one side and a reverse trapezoid in the other side respectively are provided alternatively, and the ends in the line of the abrasion resisting pieces 4a and 4b are contracted by end face springs 6. As a result, one side and the other side abration resisting pieces 4a and 4b are contacted closely to the bottom surface or the side surface of the dovetail groove 3 respectively, and a play between them is absorbed. Consequently, a play absorbing spring used in the conventional device is made unnecessary, a spring hole process to the abrasion resisting piece installing liner is also made unnecessary, and material cost, processing cost, and assembly cost can be reduced extensively.