I worked long and hard to find my sources. I don't give out that info very easily. I buy in large quantities as it keeps the price down.
I sell flywheels (for direct drives) for $15 and motors for $15 as well.
I have been using the motors for over a year with good results.
-and the bearings in the flywheels haven't crapped out on me yet.
6000 rpms = 100hz
-that's all the help I am giving.