... groove ball bearing , 6200-6220, 635-639, 6300-6318, 681-689,6800,6868,691-699,6900-6968,62200 deep groove ball bearing ... 1)the miniature ball bearings are widely used in Fishing ... 635-639,6300-6318,681-689,6800,6868,691-699,6900-6968,62200,62300,R,series and so on.4) ... , Z, ZZ, RS, 2RS8) Different sizes available deep groove ball bearing