BOWER sells R18. Related information about R18 includes: Model R18 Inner diameter: 28.58 mm Outer diameter: 53.98 mm Thickness: 12.7 mm Series: Deep groove ball bearing. If you want to know more about R18 related information, you can consult online or call the hotline , we will serve you in detail. R18 has a wide range of uses. R18 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of R18 sold by our company is reasonable and we look forward to cooperating with you.