Hello can any one tell me is this going to be a big problem as my motor are not water proof I had use the shaft seal but when I run the motor the temperature of shaft increase rapidly I think it is because of the friction between the rubber seal and shaft do any one know I can use anything different then rubber seal ?? I have attached my picture with this
No it is not a big problem , any motor can run under water , but the shaft and bearing will rust and degrade quickly , and it is more the time it spends wet between uses ( you can use corrosion X ) , it is always better to have sealed and waterproof can , but i have never successed in my first build and the setup is still running …
In water motor will be « colder » , and in fact testing it by running it in air without any load applied will make it heat fast , it is normal
And for friction if you want (?) to put a seal between gear and motor , you can always add oil