I just read your first time racer thread, and I now know why you melted your bearings....you were running WOT with no load on the clutch bell...meaning your clutch bell was not engaged with your spur gear, so you were spinning it at astronomical RPM's and the heat melted your bearings..you are lucky you didnt blow your engine..Try not to do that again..Check your gear mesh, and if your buggy is not moving when you apply throttle. apply Brake ASAP to prevent damage..good luck...get some of the faster guys at your track to help