plz answer if you have a skateboard and understand the difference
The difference is that you are asking which is better a Ford or a truck. 608 is the standard industrial size spec for bearings used in skates and boards. Z indicates a shield. All bearings that will fit your board are 608. ABEC 3 is an industrial standard for tolerances in the bearing. Higher numbers indicate smaller tolerances and less vibration at high speeds (industrial speeds that are equivalent to a couple hundred miles per hour on your board. ABEC numbers are basically meaningless for skates and boards. There is more difference in quality between makers than in ABEC 1 and ABEC 7. The lubricant used in the bearing will have more effect on speed than different ABEC ratings.
z bearings. first clean them with goo be gone and then denature alcohal in a container you can shake em up real good. before cleaning take shields off. finish with two drops of bones speed cream. or get bones red bearings since they don't have that heavy grease in them.
