The reason that they use a softer material for one of the surfaces is so that you can replace the rod bearings (cheaper) instead of having to replace the crankshaft (expensive). I am replacing the front wheel bearings on my Case 300. The roller bearings are hard and so are the races but the races are easy to remove and cheap so both are hard material. If the surfaces are properly lubricated two hard surfaces will last many, many years.
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Today's Featured Article - Product Review: Electronic Ignition - by Staff. Oil, for example has come a long way in the last 50 years and I don't use anything but the latest API grade available. I've heard the arguments for non-detergent oils but would never trade it for today's formulations. Paint is another, the modern acrylic enamels are great for resistance to grease and fuel stains, retaining their shine and they last forever; unlike enamels and lacquers . Still another is the alternator. No doubt using the original generator keeps the tractor pure, but for thos
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