The advantages of using ceramic balls are that they are non-corrosive, lighter in weight, harder and stronger than steel, have lower rolling friction, and last longer. This makes Bones Swiss Ceramic bearings accelerate faster, roll farther, and last longer than polished steel ball bearings. If you are looking for the very best, invest in Bones Swiss Ceramics.
Skate Rated™ - Skate Rated bearings are engineered and tested by Bones Wheels to withstand the high impacts of hard landings and the high side loads of turning. These bearings roll faster and last longer than bearings that use the ABEC rating system. To give Skate Rated bearings an ABEC rating would ignore all the improvements Bones has made over the industry standard. Skate Rated bearings are specifically designed for skateboarding, not electric motors.
Swiss - Swiss bearings accelerate faster, roll smoother and last longer than traditional steel bearings.
Ceramic - Ceramic bearings are lighter than steel bearings and roll smoother with less friction. Ceramic bearings also resist dirt and moisture better than steel, but aren't completely waterproof.