Deep Groove Ball Bearing factory Technical Parameter High quality Deep Groove Ball Bearing 6309 6310 6311 6312 6313 6314 6315 6316 6317 Model Dumber(ZZ/2RZ)Internal Diameter(mm)External Diameter(mm)Thickness(mm) 63094510025 63105011027 63115512029 63126013031 63136514033 63147015035 63157516037 63168017039 63178518041 Please talk to our sales for more modles of bearing equipment. If you have any specific inquiry, We'll be happy to assist you!Deep Groove Ball Bearing factory website:http://www.zwzmachinery.com/be....aring/deep-groove-ba