>>1486777https://www.amazon.com/gp/product/B018B7D05Kto do your hubs you can buy good ball bearings pretty cheaply and wheel-bearing grease from an autoparts store is fine too and some kerosene as a solvent
the tools you need are just several cone spanners (regular spanners are too thick).
then just like a really clean plastic lid to work on and some small containers and rags
Even if your wheels spin it makes a real nice difference putting fresh grease and bearings in and protects the bearing surfaces. From sitting the current grease will have dried out.
