This wheel axle and axle ring set offers smoother
rotation for less power loss. It removes potential problems caused by
loose parts that were used in the previous generation of axle shafts
that used a set screw to hold the pin in place. These parts can be
fitted to the swing shaft in your existing universal shaft set.
fitted with universal shafts – use in place of wheel axle in Items
53597, 53791 or 53792.