... than 15 degreesFirst,Screw Conveyor's advantage:1,simple structure,cross-section size is small,the cost of the end;2,The ... device. Screw machine body consists of a header section, in the middle section, the tail section consists of three parts. Under normal circumstances ... bearings are subjected to axial force, in the middle section and tail section within the bearing screw shaft, moreover, in the tail ...