There's no clicking sound from my infeed/outfeed rollers. You might be right that a bearing is bad, but maybe the drive chain has a problem? Take the cover off and have a look while it's running. You definitely want to disengage the rollers when not using the planer function. If you don't the friction material on the drive wheel can/will get a low spot in it. You can check to see what shape it's in when you have the cover off. I have no clue how that can be repaired if it's bad, but someone here probably knows if you need to know.
John