BOWER sells BK4012. Related information about BK4012 includes: Model BK4012 Inner diameter: 40 mm Outer diameter: 47 mm Thickness: 12 mm Series: Needle bearing. If you want to know more about BK4012 related information, you can consult online or call the hotline , we will serve you in detail. BK4012 has a wide range of uses. BK4012 is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of BK4012 sold by our company is reasonable and we look forward to cooperating with you.