... .SO9001:2000 Systerm Passed and Deep Groove Ball Bearings with simple structure , are easy to use and maintain. These bearing are mainly used to ... . deep groove ball bearingbore diameter from 10mm to 200mm, 6000 series, 6200 series, 6300 series, 6400 series, 6700 series, 61800 series, 61900 series, 62200 series, 62300 series, 63000 series, R series, RLS series, RMS series, 1600 series ...