https://imgur.com/0nWiOXi
The chain goes through periodic loading (800 times a day). I don't want to increase the hardness of the pin as I would rather prefer the pin to wear than the chain itself. What I have found so far is that while chain link diameter is 12.1mm, the pin diameter is 10mm...
We have a reciprocating pump that feeds off 2 gear pumps with highly viscous sealer. There is one line coming off of the main reciprocating pump, tees off at the front gear pump and goes another 20ft to the rear gear pump. The reciprocating pump works at the same frequency throughout the cycle...