An eight pack of premium ceramic skateboard bearings along with 4 bearing spacers will set you back 130 as compared to 30 for steel bearings.
Ceramic vs steel bearings longboard.
Geometrically the contact points inner and outer dimensions and thickness between steel and ceramic bearings is the same so they are interchangeable.
The ceramic balls are often silicon nitride or equivalent.
Ceramic bearings vs steel bearings advanced ceramic manufacturer.
Performance benefits of ceramic bearings.
Ceramic bearings vs steel bearings ceramic materials offer superior corrosion and heat resistance higher dimensional stability and lower density which facilitates high speed.