Generally speaking, abec-9 has been the highest grade in bearing industry. We can use a lot of official information to confirm this. One exception is that in view of the high requirement for high speed in skateboard industry, Lily Bearing specially develops abec-11 skateboard bearing
Abec 9 rollerblade bearing adopts the most restrictive processing precision and can be applied to any harsh conditions and can meet high speed and high performance requirements.
There are no material requirements in abec grades, so 608 abec 9 bearing can has different materials, including chrome steel, stainless steel and ceramic inline skate bearing abec 9.
In order to ensure that the entire bearing can reach to abec9 precision, we will choose the highest grade steel material, the best container cage and the highest grade steel balls. At the same time we also use the most strict tolerance standard to require the whole bearing’s production and processing process.