[HELP] Waterproofness Technic Motors

[TheNextLegoDesinger]

hy i have found some things about the waterproofnes of the M-motor.

Then I asked myself if the XL motor also is waterproof?

Does anyone know something about it.

Thanks

[D3K]

Try it, then report back

[Zerobricks]

No lego motor is waterproof. They just work under water But you can have problems with rust and loosing the gear lubrication.

[TheNextLegoDesinger]

yeah okay so if a litlle bit of water gets in it will still work

[Milan]

yeah okay so if a litlle bit of water gets in it will still work

Yes, but...

But you can have problems with rust and loosing the gear lubrication.

And ultimately they can cease to work.

[DrJB]

And ultimately they can cease to work.

I'd rephrase ... and ultimately they can will cease to work.

Edited November 19, 2014 by DrJB

[Tommy Styrvoky]

I wonder if a motor could be waterproofed if there was a seal around the output and if the casing of the motor was sealed shut.

[rollermonkey]

That would describe how to waterproof a motor, Tommy. :)

It is generally the motor's output that poses the most difficulty. Typically, on ships (at least the Navy ships I was on), some leakage is expected and designed for with pumps removing water that penetrates the stern tube(s). Why not place the motor above the waterline, and use shafting to bring power below? With enough buoyancy, and proper weight balance, they motors don't need to be waterproof.

Edited November 20, 2014 by rollermonkey

[TheNextLegoDesinger]

yeah but it's a dune buggy with a motorhood height of 4 cm and in the back is already a heavy duty 2 speed gearbox and an XL motor

[aol000xw]

Waterproof as in submersion no, water resistant as in rain and puddles probably yes. If there is mud the transmission needs some protection.

Seals wear out, the faster the motor, the bigger the problems. For underwater, an "inverted" brushless motor is way more convenient. The rotor holds the magnets which can be easily sealed/protected then all the electronics are in a fully sealed enclosure, without moving parts, holding the coils and electronically switched. Water comes in contact with the rotor/magnets and acts as a lubricant/refrigerant.