BOWER sells NK30/20. Related information about NK30/20 includes: Model NK30/20 Inner diameter: 30 mm Outer diameter: 40 mm Thickness: 20 mm Series: Needle bearing. If you want to know more about NK30/20 related information, you can consult online or call the hotline , we will serve you in detail. NK30/20 has a wide range of uses. NK30/20 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of NK30/20 sold by our company is reasonable and we look forward to cooperating with you.