BOWER sells 1639. Related information about 1639 includes: Model 1639 Inner diameter: 20.638 mm Outer diameter: 50.8 mm Thickness: 14.288 mm Series: Deep groove ball bearing. If you want to know more about 1639 related information, you can consult online or call the hotline , we will serve you in detail. 1639 has a wide range of uses. 1639 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of 1639 sold by our company is reasonable and we look forward to cooperating with you.