Slip rings come in a lot of different shapes and sizes. Is there a performance difference between pancake and drum shape?
Although we’ve designed some excellent pancake slip rings, our expertise has shown that a drum design is more cost effective and performs better than a pancake design. A pancake slip ring usually has: greater weight and volume for the same circuits, greater capacitance and crosstalk, greater brush wear and more readily collects wear debris on its vertical axis. However, a pancake offers reduced axial length for the number of circuits. So the decision to use a pancake is usually due to the size and shape of the envelope with which you’re working. Q: A slip ring seems to be called a lot of different names – rotary electrical interface, commutator, collector, swivel, and rotary joint are a few that I’ve heard. If they’re all the same thing, why are so many names used? I wish you guys would make up your minds – it’s confusing! A: Alas, you are correct. And it is confusing. We’ve consistently called them slip rings for the 46 years that we’ve been designing and manufacturing them. We’ve not
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