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Precision Deep Groove Ball Bearings ( EMQ Bearings ) 6801 2RS Bearing Designation Open Seals 6801 2RS d 12 D 21 B 5 r1 0.3 Cr 1.9 Cor 1.05 Grease 33000 Oil 39000 da 14 Da 19 Mass(kg) 0.006 Introducti...