A shaker device including at least one motorized member that is intended to transmit by contact a shaking force to objects to be shaken. The member includes at least one structural insert that is covered by a wear jacket. The structural insert includes a reinforcement included in a matrix that is covered by the jacket. The matrix is based on a material which is different from that of the jacket in that it is adapted to adhere to the reinforcement and to the material of the jacket.
