Elements can be elementary if the word is to be taken literally, particularly when solutions to problems in linking techniques can be solved with the simplest elements. Of course it is not simple to conjure such things out of a hat. One would need a large number of elements in order to find the right one. So a family of elements with many different facets must be available - to enable many different possible solutions to many quite different problems which however time and time again end up with the same problem: how can I connect parts together? simply and quickly?

There are such families of parts available in the retainer category which are elementary : for shafts with groove, compensated for play / demountable and also for smooth shafts, demountable or simply not. A solution for each problem : that is the principle ! Why don't you take a quick look at it?

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