Kahler CAM tremolos take 2 bearings, pressed into each side of the CAM. The bearing race accepts the bearing pin.
These are sealed bearings and rarely need changingĀ but sometimes the race can be damaged and then replacement is needed if it doesn't spin correctly.
FitsĀ all Kahler CAM tremolos 22xx, 23xx, 42xx, 43xx, 72xx, 73xx (xx=any number).