Two Steel
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Two Steel
What has less friction: Two steel gears against each other, or a rubber wheel against wood?
I want to build a drivetrain for a pedal boat. The turning action of the pedals is to be transferred by a 90 degree turn to a driveshaft with a propeller.
Now I'm weighing the pros and cons of using two steel gears against putting a rubber wheel at the end of the driveshaft and let it rest against a revolving, wooden disk, driven by the pedals.
Which of the two systems, do you reckon, would result in better efficiency?
I need this thing to turn nice and willingly.
The boat is a canoe, and I hope to commute with it over a stretch of water 8 miles long each way.
The steel gears have less friction, though you would need friction to get the rubber wheel to work. Favios has got it right... there are so many more problems that can arise with the rubber wheel and the wood, though it is a good idea. For reliability and durability, stick with the steel.
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Progress Under Way at Ground Zero
Is there a plumber out there who can identify what two stainless steel pieces are?
One connects to the end of a braided hose- about 3 inches and 1 inch diameter. And the other connects to to a pvc tube and and looks like a nozzle sprayer. Hardware stores cannot identify them.
no, bcoz they is the wrong way round.
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