In in open cut mining equipmet, am working on lube system trials at the moment but they keep failing after a short amont of time. (As joint is to earth engageing equiment )
There are 5 bushes 10" wide. 3 on one part and 2 on the other with the pin joining them like a hinge. The articulation is about 110°. Is constantly working 24/7.
I have a pin (300mm diameter) running in a bush 25mm thick.
rate of rotation is around 10rpm. Load is around 300-400 tonne. Yes heavy. The wear rate is currently an issue, pin is around 600HB. Question is what is the optimal hardness of the bush?.
At the moment i favor a hardness differential...
