BOWER sells NK21/16. Related information about NK21/16 includes: Model NK21/16 Inner diameter: 17 mm Outer diameter: 29 mm Thickness: 16 mm Series: Needle bearing. If you want to know more about NK21/16 related information, you can consult online or call the hotline , we will serve you in detail. NK21/16 has a wide range of uses. NK21/16 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of NK21/16 sold by our company is reasonable and we look forward to cooperating with you.