Bill, under the right conditions a soft metal or even plastic bushing will wear wear steel more rapidly than a steel bushing. What happens is that the brass, bronze or plastic will pick up particles of abrasive material such as silica sand which can become firmly enough imbedded in the soft metal that it will wear the steel. I had this happen on a piece of equipment that I used to service many of for customers. The manufacturer replaced a bronze bushing with a plastic one hoping to increase the life of thrust washer. What happened was that under most conditions the plastic would load with hard particles and wear into the Thrust washer way faster than the bronze had. There is usually no shortage of dust in your hayfields when baling.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don�t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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