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Idler Sprockets
My team is putting an AndyMark 16 tooth hubbed sprocket on a steel keyed 3/8" shaft as an idler sprocket. Originally, we planned on pressing a brass bushing into a .500 bore sprocket so that it could spin freely around the shaft, but unfortunately we have run out of bushings.
We are trying to finish our practice bot tomorrow, and to test it, we need some kind of idler sprocket. It needs to rotate freely around the shaft (the shaft drives something else), and more importantly it needs to be made quickly with stuff we have in the shop. My current thinking is simply take a .375 bore sprocket and put it on without a key.
What are your suggestions?
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