BOWER sells 634. Related information about 634 includes: Model 634 Inner diameter: 4 mm Outer diameter: 16 mm Thickness: 5 mm Series: Deep groove ball bearing. If you want to know more about 634 related information, you can consult online or call the hotline , we will serve you in detail. 634 has a wide range of uses. 634 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of 634 sold by our company is reasonable and we look forward to cooperating with you.