SB20 - Flywheel Bearing Service
Can You Service Sealed Bearings? Sealed bearings, like those in the SB20 flywheel, can be serviced to extend their lifespan. ✅ Bearings with plastic dust seals are serviceable . You can remove the seal, add grease and then replace the seal in a few minutes. The Axle and Cog Bearings have plastic dust seals. This post shows you how to service them. ⚠️ The Flywheel Bearings have metal dust seals that are not easily removed. I will offer a partial servicing option in my next blog post. What about Clicking Sounds? "Clicking sounds" are a common issue with the SB20 flywheel. This happens with the outer ring of a bearing moves side-to-side. 🔬 Stages has issued a service bulletin to address the issue: Flywheel Bearing PTFE Application . It tells you to spray lubricant into one bearing on each side of the flywheel. I must admit, I am not a fan of this method. Spraying light lubricant is a half-measure. PTFE spray can dilute the grease i...
