This just saved my robovac from going in the garbage! I The drive side was far far worse than the opposite, but this resolved the issue we were having as well. We have dogs, so this thing already gets a lot of cleaning, did not anticipate hair getting INSIDE those end caps. +anker +eufy take note on these components as a weak point.
Also, the drive side cap was harder to get apart, I used a small flat head and carefully worked my way around. After seeing how it came apart in the end, it appears the drive side has a small rectangle that feeds into the motor, seems like if you can get that off first, then the rest might come apart more easily.
Thanks again! robovac saver!