BOWER sells NA4904R. Related information about NA4904R includes: Model NA4904R Inner diameter: 20 mm Outer diameter: 37 mm Thickness: 17 mm Series: Needle bearing. If you want to know more about NA4904R related information, you can consult online or call the hotline , we will serve you in detail. NA4904R has a wide range of uses. NA4904R is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of NA4904R sold by our company is reasonable and we look forward to cooperating with you.