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 - The Niagra View Mobile - Powered by a 1959 Ford Tractor - by Mark Massey. In 1959 the Niagara Frontier Transit Inc. of Buffalo, New York designed and built six Viewmobiles for the Niagara Frontier Sightseeing Inc. for use as a sightseeing ride at the Niagara Falls State Park, Niagara Falls, New York, powered by a 1959 Ford 611 Tractor.
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