ORS 6307ZZ C3 Single Row Deep Groove Ball Bearing Shielded 35mm ID x 80mm OD x 21mm width. Electric motor quality ball bearing lubricated with Exxon Polyrex EM Grease G93.
Single row deep groove ball bearings have the highest speed ratings among all bearing types. Due to the spherical shape of the balls, only the top part of the balls run over the raceways. Since it has a point contact with the raceways, unlike line contact in roller bearings, lower friction and higher speed ratings can be reached.