A desing of a silage spreader is presented in this thesis. This tractor implement is intended to be connected to the rear three-point hitch of the tractor. The spreader roller is driven by a cardan shaft with a combination of a conical gear drive and a chain drive. The design of the tractor implement allows the hydraulic inclination of the roller to direct silage to the silo wall. In the thesis the implement's structure is described, the strength of the main elements is checked and the lifetime of the applied ball bearing is calculated.