Performance Comparisons Between Duals and Singles on the Rear Axle of a Front Wheel Assist Tractor

Abstract

ABSTRACT DYNAMIC traction ratio and tractive efficiency of a tractor, equipped with dual or single tires on the rear drive axle, and a mechanical front-wheel drive assist, were evaluated on four different surfaces; con-crete, disked sandy soil, disked wheat stubble and plow-ed wheat stubble. When operating on concrete, a higher dynamic traction ratio was found for the duals than singles. However, when the tractor was operated in the field on the different soil surfaces, no discernible perfor-mance difference in the dynamic traction ratio or tractive efficiency could be detected between single or dual tires on the rear drive axle.