low friction pulley
low friction pulley
(OP)
I am designing a force calibration rig for an electric propulsion thrust stand. The design requires a pulley to support the loading of calibration weights. The pulley needs: to have minimal friction, support about 100 grams, physically 1-2 inches in diameter, and have an edge groove that will constrain a thread-sized string.
Does anyone know of a supplier for such a pulley (price is not important)? What type of thin strings are available? Spider wire?
Does anyone know of a supplier for such a pulley (price is not important)? What type of thin strings are available? Spider wire?
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RE: low friction pulley
http://www.singhlascientific.com/physics-1.htm
with nylon monofilament thread.
Only snag is, I don't think those pulleys are ball bearing - although they are designed to be low friction for lab experiments. You would have to check.