###### Shaftless Screw Conveyor Calculations | Engineering Guide

Drive shaft diameter, flange bolt rating and the torsional rating of the spiral will be checked according to the following calculations. Full Motor Torque is calculated using the Total Horsepower and Speed of the drive. The following calculation represents the full motor torque as measured at the output shaft of the gearbox.Research Paper DESIGN AND SELECTING THE PROPER …2013-5-9 · This paper provides to design the conveyor system used for which includes belt speed, belt width, motor selection, belt specification, shaft diameter, pulley, gear box selection, with the help of standard model calculation. 1. INTRODUCTION: During the project design stage for the transport of raw materials or finished products, the choice of the