... of Deep Groove Ball Bearing: 6000, 6200, 6300,6800, 16000, series. 2) Material used: GCr15—China.(AISI)52100—American,(Din)100Cr6—Germany ... , ABEC5, The main advantage of our bearings: 1) Low friction 2) Minimum lubrication 3) Wear resistant 4) Running in not required ...