SB20 - Advanced Flywheel Servicing
This post focuses on disassembling the SB20 flywheel to extract the internal electromagnet stator assembly from the flywheel shell. You can then add grease to the large Flywheel Bearings . You can also replace the Optical Sensor should you need to. Video Here's the video. Who Should Do this Service? Anyone who wants to extend their flywheel life . Sealed bearings can last a lifetime without servicing - but they can also fail after a few years. One way to maximize lifespan is to add grease once or twice a decade . If you have grinding, clicking and thudding sounds that indicate bearing failure. All SB20 flywheel bearings are inexpensive. None costs more than $5. The service procedure shown can also be used to replace bearings. You read the Stages service bulletin on quieting clicking flywheel noises , and want to do a better job. In short, servicing sealed bearings is optional. Most bearings never fail. Extreme temperatures, and exposure to humidity can be a negative f...