August 6, 200916 yr I have noticed that some of the Tire Mechanical Hammer. Some are shown using the type of bushings that are shown in Clay Spencer Design, Then the are others using Rectangular or box steel tubing, and the Bearings shown are Heim or Rod end bearings. Infomation needed how well do the HEIM Spherical Bearing (bushing) hold up to the pounding of the mechanical hammer. They look strong but does the pounding weaken the more percise heim bearing or are they as strong as the pressed in oil lite bronze into sch 80 outer casing. Thanks
August 7, 200916 yr Bornze is stonger, but if a heim joint is sized correctly it will be strong enough.
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