BOWER sells HK4520B. Related information about HK4520B includes: Model HK4520B Inner diameter: 45 mm Outer diameter: 52 mm Thickness: 20 mm Series: Needle bearing. If you want to know more about HK4520B related information, you can consult online or call the hotline , we will serve you in detail. HK4520B has a wide range of uses. HK4520B is mainly used in engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electric power, railways and other industries. The price of HK4520B sold by our company is reasonable and we look forward to cooperating with you.