I have seen roll pins used for many years in Claas combines with no problems whatsoever. They were used to hold sprockets on elevator chains and universal joints to shafts. There were even one holding the main drive pulley from the engine to the gearbox.
The thing we were always taught was the spilt goes towards the load, when the pressure comes on the split tends to widen and lock the pin tighter whereas if the load is on the side with the split 90 degrees to it, the pin will close and drop out.
In high load applications, a smaller pin can be driven into the main one to help stop it collapsing.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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