8-Pack Full Ceramic High Speed Skateboard Bearings ZrO2/Si3N4 Nachi ABEC-7 Precision Bearing 7018CYDUP4 Nachi Ball Bearing

7018CYDUP4 Nachi Ball Bearing

OD (outer diameter)=18mm

inner diameter is 120mm

Static load rating Cor: 339

bearings have 2 Removable Seals

8-Pack Full Ceramic High Speed Skateboard Bearings ZrO2/Si3N4 Nachi ABEC-7 Precision Bearing 7018CYDUP4 Nachi Ball Bearing608 Full ceramic Ultra Low Friction Bearings Set of 8 Bearings Set of 8 full ceramic skate bearings that work in high speed skate applications like skateboards, inline skate, rollerblades, roller hockey, and even the 8mm quad rollers, these bearings can be used inline skate, rollerblade and roller hockey. These bearings use for racing and competitions, this set has 8 bearings for skateboards, there is no steel ferrous mateial in these ball bearings.