so just figured id offer up some info for neumas that i have. my neuma hybrid wasn't working n i needed to clean,oil and replace the bearings on my machine. needless to say its working pretty good right now. so if u were curious to where to buy the bearings n the item number ,here it is. u can go to http://www.bocabearings.com/ n order the bearings individually or by the bulk. heres the product number : SR144-ZZ
hope this helps out n e one in need of said info.