... and delivery Deep groove ball bearing: Detailed Description:1) Model: Open, Z, ZZ, RZ,2RZ,RS, 2RS2) Quality level: reach the same ... level as the Japanese and European bearings 3) Tolerance level: ABEC-1 ... -2RS6207-RZ 6207-2RZ6207N 6207NR3572171.125.6715.320.288 High quality 6000,6200,6300 series Deep groove ball bearings