Following is the item we can manufacture of Deep groove ball bearings. PRODUCTS SERIESDIMENSION d(mm)ERIVING STRUCTURE6180010320Z,ZZ,RZ,ZRS6190010280Z, ZZ, RZ, 2RS, N, NR, ZN, RZN1600010260600010260Z, ZZ, RZ, 2RS, RS1, 2RS 1, N, NR, ZN, RZN620010220Z, ZZ, RZ, 2RS, RS1, 2RS1, N, NR, ZN, RZN630010190Z, ZZ, RZ, 2RS, RS1, 2RS1, N, NR, ZN, RZN640010100N, NRMINI BEARINGS310Z, ZZ, RS, 2RS, F60000If you are interested in our products,donot hesitate to tell me.