I recently bought a used finish mower (taylorway Pittsburgh 220 48") and one of the spindle bearings went out within a couple hours of mowing. I have replaced them twice. I cannot find what the actual bearing should be I only found an exact one that the previous owner had replaced it with. My question is can I replace the entire spindle (for both blades) with ones that are similar in dimensions? I cannot find any parts for this thing.