Agriculture Machine Ball Bearing Z9504B Dimension: d=0.75" D=1.78" B=0.61" FAFNIR : P204RR6,204KRNP-2, BCA:204BBAR Agriculture Machine Ball Bearing Z9504BDimension: d=0.75" D=1.78" B=0.61"FAFNIR : P204RR6,204KRNP-2,BCA:204BBARUsed on various cultivators,gauge wheels,disc tillers,mowers,sprindles,lawnmowers,and other implement applications.