Video by Boca Bearing Company via YouTube
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Gerardo polished, replaced the cages, spindles and bearings in his pedals and now they look better than new!
Bearings used:
https://www.bocabearings.com/products/r6-zzc–4375-3-ps2-19834
Find additional bicycle bearings here: https://www.bocabearings.com/products/bearing-applications/bicycle-bearings?ProductType=2
Read the blog here: https://www.bocabearings.com/blogs/gerardo-martinez-bmx-expert