DC Gearbox Motor - TT Motor - 200RPM - 3 to 6VDC (ADA3777)

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This is a placeholder topic for “DC Gearbox Motor - TT Motor - 200RPM - 3 to 6VDC” comments.

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Hoping to find a datasheet with torque-efficiency values for this - does anyone know the product number for the motor itself? Or anywhere I could get its datasheet?

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It’s very unlikely you’ll get that kind of information for one of these. You don’t really get that level of engineering and quality control in $6 hobby spec motor.

The fastest way to get that information will be to buy one and measure it. Just use a lab power supply to drive it, and tie a string with a small weight to a pulley or rope spool on the output. Power in = Volts=Current. Power out = Weight times lifting speed.

Efficiency = Power out / Power in.

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I’ve been hunting around to find a screw or similar to fit into the hole in the axle, so I can fix a wheel on. Could anyone advise what sort of fastener would suit?

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Hi @Stephen276464, Welcome to the Forums!!!

The Output shaft as a hole in it that a screw can thread into to secure wheels to the axel.

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From the accessories they are either keyed and secured with a screw or they are keyed and have a friction fit

I hope this helps with some ideas.

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Perfect, thanks. That’s what I needed. Looks like I just need a 1.95mm screw.

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Hi Stephen
Probably be an M2 metric screw if it is threaded. If just a hole it would take an M2 thread.
Cheers Bob
PS. If you contemplate a self tapping screw (I think 2G) be aware there are special thread forms for plastic which differ from the “normal” (sheet metal??) form.

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Will this still work fine if I take it out of the yellow housing?

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I think the yellow housing will contain the reduction and direction changing gear box.
Cheers Bob

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Hi @mighker ,

The yellow housing contains the gear box as pointed out by Bob. The motor will still work as expected but will look more like the following generic DC Motor:

You can also expect this to spin a fair bit quicker without the reduction taking place in the gearbox.

Hope this helps!