The cutting-edge process technology in Swiss is applied to this type of Ti-coated steel ball bearing. Furthermore, the most sophisticated grinding machine is employed to manufacture grooves of the bearing .
Bearing cage was made of DuPont plastic and the material of steel ball is from Japan.
This type of bearing has stable rotational speed and optimum endurance by virtue of various leading technology and material. As such, this bearing is the most durable steel ball bearing in inline skating.
Product Name：WILLYSILK Bearings
Description：608 Type S Ceremic
Size： Wide:17cm Long :13 cm Tall:3.5 cm