BOWER sells 1638. Related information about 1638 includes: Model 1638 Inner diameter: 19.05 mm Outer diameter: 50.8 mm Thickness: 14.29 mm Series: Deep groove ball bearing. If you want to know more about 1638 related information, you can consult online or call the hotline , we will serve you in detail. 1638 has a wide range of uses. 1638 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of 1638 sold by our company is reasonable and we look forward to cooperating with you.