Quote Originally Posted by Jonathan View Post
I doubt rubber seals are appropriate for the speed this will be running at. The bearings apparently already get hot, so a seal like that is just going to make it worse. I used some on my wind turbine, for each blade, and they add a lot of friction...but it didn't matter there as it's only a few rpm.
Just found out they are only good for 1000 rpm....damn!!! Just had a brainwave tho! Will contact our pump suppliers and see what they use...if they run them a 2 pole then that's 2900 rpm so might be better...will put some feelers out.