BOWER sells NA6904. Related information about NA6904 includes: Model NA6904 Inner diameter: 20 mm Outer diameter: 37 mm Thickness: 30 mm Series: Needle bearing. If you want to know more about NA6904 related information, you can consult online or call the hotline , we will serve you in detail. NA6904 has a wide range of uses. NA6904 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of NA6904 sold by our company is reasonable and we look forward to cooperating with you.