Max Your Fan Speed By Using BEARING 688/608 

UPDATE: The bearings used in this video are 688ZZ. The difference between 688 and 608 lies in the outer size of the bearing. ie 608 the outer diameter is 7/8 inch. while the 688's outer diameter is 5/8 inches. For the inner diameter of both, they are the same size.
So if you use a bearing type 688 the outer diameter size is smaller. so that it matches the size of the bushing hole. ZZ code behind the bearing type, it means that the bearing has double shields.
This is how to make the fan become fast using bearing 688. Don't believe it? You no longer need to check how much fan repair costs at the service shop around your house. Fix it yourself. Easy and not complicated.
0:00 - Video Intro
00:39 - Opens the fan motor
01:21 - Removing the Rotor
02:19 - Removing the Bushing
03:20 - Selecting a Bearing
04:36 - Installing Bearing 688ZZ
06:24 - Bearing positioning
07:31 - Putting On The Holder
09:24 - Replacing the Rotor and Stator
10:51 - Final Electrical Testing

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