Bevo bearings are engineered and manufactured to surpass the quality of standard bearings. Only Chrome Steel races and retainers are used in the manufacturing of Bevo Bearings. The quality and characteristics of Chrome Steel not only dramatically increases the life of your bearings, it also assures maximum performance resulting in a faster smoother ride. Our custom DEEP Groove Channel stabilizes the roll, reducing vibration and roll resistance. Only self channeling synthetic lubricants are used in Bevo bearings. You can rest assured when riding on genuine Bevo Gold or Silver rated bearings, you will maximize your performance. Tour Hockey ABEC 9 Rated Bearings Feature: ABEC 9 rating Chrome steel inner and outer rings and AKS chrome steel balls. 16 bearings packaged in a see through clam pack. Includes a tube of custom BEVO bearing lube. Model # 608SE