answer to waterproofing an electric motor housing
answer to waterproofing an electric motor housing
(OP)
Mechanical seal Eng. Recently built a bow thruster for my sailboat. I tried using a sealed bearing for a shaft seal however it leaked a small amount of water. I attached an airline to the motor casing and pressurised it using a small air compressor at about 10 psi. This seems to work, however next time I will use the shaft and bearing from a automobile waterpump .....Azureus





RE: answer to waterproofing an electric motor housing
That said, I would trust a 'contact' bearing seal to keep grease in the bearing, and I have trusted them to keep oil in gearboxes, but I don't think I'd trust them to keep water out of an electric motor. Maybe a sealed bearing with an auxiliary lip seal, but not the sealed bearing alone.
Mike Halloran
Pembroke Pines, FL, USA