For skate bearings there are different precision;such as ABEC-1,ABEC-3,ABEC-5,ABEC-7,ABEC-9 which means have higher precision.

Skate bearings with a higher ABEC rating have tighter tolerances, and that means better precision, higher efficiency, and the potential to accommodate applications requiring high speed.

MKL BEARINGS can produce ABEC 7 Skateboard Bearings  &ABEC 9 Skateboard Bearings.

And we can produce Skateboard & Longboard Bearings with different requirements .

Such as:

Material : Chrome steel or Ceramic .

Surface treatments : black treatments,or golden surface treatment ,or colorful skate bearings

For Precision : From ABEC-1 Skate bearings to ABEC-9 608-2RS bearings .

And we also have 7 balls skate bearings or 6 bigger balls skate bearings .