... resistance NSK Deep groove ball bearings 61819 Parameter: Inner ... ball bearings are the most popular type of ball bearings, which are particularly versatile.2. Series: 6000,6200,6300,6400,61800,61900,16000 and ... Ball bearing: Deep groove ball bearing, Trust ball bearing, Self-aligning ball bearing, ceramic ball bearingRoller bearing: Taper Roller bearing, Cylindrical roller bearing, Spherical Roller ...