The current invention provides an improved sheller for removing the husk or shell from nuts, legumes and other similar plant products. The sheller of the current invention includes an improved ring assembly. The improved ring assembly comprises ring units having an inner ring and an outer ring. Each inner ring carries integrally formed spacers and each outer ring carries integrally formed spacers. Each inner ring directly contacts an adjunct inner ring and each outer ring directly contacts an adjacent outer ring. Through use of integrally formed spacers, the current invention significantly reduces the number of component requiring assembly during the manufacture of the sheller.