ok so, i purchased a neuma hybrid w/ the electric module from ebay a while back. i originally just wanted it from a collectors standpoint but figured i might as well use it as well. the thing is, when i use it, it seems like my power unit(critical) needs to b turned up a lot. i had read on here that most ppl recommended to do so when ppl shared similar problems. aside from this, when i do run it, it works ok for a lil bit, n then sounds like nails on a chalkboard. this is where my question comes in. i opened it up, cleaned everything n considering that there are no parts really, it leads me to think its the bearing. so does n e one know where i can purchase these bearings to see if that will fix my problem. n e info would b really helpful.thanks.