... 6220,635-639,6300-6318,681-689,6800,6868,691-699,6900-6968,62200,62300,R,series and so on. deep groove ball bearing ... 1)the miniature ball bearings are widely used in Fishing Tackles ... -5 5) The radial internal clearance of miniature bearing is divided into three range: code 2(means ... Z, ZZ, RS, 2RS8) Different sizes available deep groove ball bearing