... structure(1)Separate angular contact ball bearingsThis bearing the code name for the S70000, the outer ring raceway side no locking, with ... separately. These are mostly less than 10mm diameter miniature bearings, for gyroscope rotor, micro motors on the dynamic balance, noise, vibration ... ) of three types. a.Back to back configuration, post code for the DB (such as 70000/DB), back to back pair ...