BOWER sells N304. Related information about N304 includes: Model N304 Inner diameter: 20 mm Outer diameter: 52 mm Thickness: 15 mm Series: Self aligning ball bearing. If you want to know more about N304 related information, you can consult online or call the hotline , we will serve you in detail. N304 has a wide range of uses. N304 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of N304 sold by our company is reasonable and we look forward to cooperating with you.