Thread: Gearbox for mechanism or appendage
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Unread 12-11-2014, 13:52
Andrew Duerner Andrew Duerner is offline
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Re: Gearbox for mechanism or appendage
Hi All,

I did some measurements and testing on the gearbox, particularly on the 168:1.

Weight came to 1.1lb (0.5 kg)

Backlash was 1.1 degrees

Efficiency was a bit trickier. I have a supply that has 3 different power settings and a very course amperage meter. I put a volt meter across the leads when I ran with a bare motor and then retested with the gearbox (no load). I did this with 2 different motor / gearboxes and in both directions. The voltage across with the gearbox was around 9, 12, and 14 volts, so I think the efficiency was hurt a little bit by spinning faster than what would be seen in normal operation. Without putting a ton of data down, the average of the results for efficiency under no load came out to be 61%. All but 2 of the results were +/- %7 from this.

I would expect that the values for the 264 and 552:1 should be very similar to the above.

Next up, making an adapter plate for a torque wrench to test max torque.
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