Good morning!

All ball bearings/sealed are enclosed and greased internally. There is no need to do any maintenance on moving parts and ball bearings. I actually said that to Ando when he requested guidance for making the video.

If you have a different pedal with some open-type ball bearings (very old iron cobras for example) a drop of oil can be beneficial. It also helps to have a little bit of oil on a chain to prevent any corrosion.

Generally spoken the best thing you can do is:
- keep it dust-free as good as possible.
- AVOID WD40 all times (this stuff is not grease, it is a cleaner with oil to get stuck parts going again)
- keep the pedal / store it in an area with low humidity (steel parts, such as springs and beater shafts will thank you)
- Keep the beater shafts clean (they are made from hardened steel) They can can be affected by surface corrosion (easy to wipe off), especially in wet environment or if being touched frequently.
- Do not overtighten any screws. - "hand tight" is usually more than enough.

Best regards
Dennis