608-2rs is miniature bearing and it is often used for skateboard, so it is also called skateboard bearing.
Customer need 608-2rs miniature bearing for skateboard and the bearing speed is high, so they would like to choose full ceramic bearing for skateboard.
When we play skateboard, skateboard may have some external impact, the 608-2rs full ceramic skateboard bearing is easily broken, so it is not appropriate for customer to choose 608-2rs full ceramic skateboard bearing.
According to customer application, we recommend 608-2rs Si3N4/Zirconia hybrid ceramic bearing for their reference. They listen to our suggestion and purchase small quantity to test. The test result is very good.