BOWER sells NA4909. Related information about NA4909 includes: Model NA4909 Inner diameter: 45 mm Outer diameter: 68 mm Thickness: 22 mm Series: Needle bearing. If you want to know more about NA4909 related information, you can consult online or call the hotline , we will serve you in detail. NA4909 has a wide range of uses. NA4909 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of NA4909 sold by our company is reasonable and we look forward to cooperating with you.