Hopper Door Bushes
On
the 5 ton Robert Hudson bottom discharge hopper the phosphor bronze bush on the
release mechanism became loose in the housing due to the impact it was subjected
to.
This
application is not lubricated so the choice of alternative materials is limited.
Some synthetic materials tested squeezed out, and were thus found to be
unsuitable.
The phosphor bronze bush was replaced with a Vesconite bush (OD 84 mm x ID 65 mm - 30 mm long)(OD 3.3" x ID 2.5" - 1.2" long). This has lasted substantially longer than the original phosphor bronze.
Updated Apr 26 2002
