Water tight motor

[Anonymous]

Looking for a motor 12v that is water tight for use on a swing bridge.

Any ideas?

William

[Snoq. Pass RR]

Try www.towerhobbies.com.  They have R/C boats, planes, and cars.

[Anonymous]

Found a remote controled tank (motor) on there that would allow me to open and close the swing bridge but still not water proof.

Think I will have to find a spec. motor for it to be water proof.

I was reading about LGB turn out coils in a old GR Mag and the effects of the moister on them I can think what it or a lot of rain would do to a stream with this type of bridge.

[Anonymous]

I don't think there are any waterproof dc motors...Inductive type AC motors like aquarium pumps, yes. dc, ???? It would interfere with cooling. However building a waterproof box to contain a regular motor shouldn't be all that hard

[tangerine-jack]

Why not follow prototype practice and put the motor in a water proof building and run a chain drive (or something similar) to the gearing mechanism of the bridge?  This will remote out your electrical components and protect them from harm.  That sounds a lot easier to me than trying to find a waterproof motor.  With this method you could use any DC motor, say one from a cooling fan off a junk car for example (already water resistant, but not water proof), and set up a simple pully system to open and close the bridge.  

Just a thought......

[dwbeckett]

All of the swing bridges in this area, except one , have bridge operator's enclouser on the side. this would give you a place to hide and mosture proof your motor with a gear drive. Note all of these are for auto's. We also have Lift and Bascule?? bridges. I just remembered one in the middel of SF bay south of Hayward Ca. it's alway's open. and I don't remember if it has a operators enclouser. Maybe one of the BAGRS members have picture they would share.

[GearDrivenSteam]

How about an older windshield wiper motor? they were water proof because they were mounted under the cowl in the weather.

[FJ and G]

Lowes and HD sell a number of waterproof electrical boxes in various sizes and shapes. Not sure why more folks don't use these.

[Anonymous]

Yes the plans do have a bridge operator's enclouser on it.

Some great ideas ya'll all have and will put them to good use!