cool, i checked out bob's site and is definately the cheapest i have found, however it now appears as if i need new rollers too. upon looking at the pics of replacement rollers, they are perfectly straight smooth shafts. on mine, there are indentations around the middle of the rollers where the ball sits..i figured that the rollers were supposed to be that way, but now it appears as if i was wrong.
i cant really complain, the trackball came with my junk cabinet when i bought it for $20, part of the plastic housing was broken off, right where it holds the one roller bearing in place, so the roller would move out of the way. i managed to fix that, but it just doesnt roll very well. 2 of the 6 bearings are really bad. THere is a local place called Erie Bearings that manufactures bearings...i'm going to check there this mornign to see if they have anything compatible, if not, looks like i'll be ordering rollers and bearings from bob.
thanks very much.