Features: 1) Deep groove ball bearings are the most common bearing type. They accommodate both radial and axial loads in both directions and are suitable for high rotational speeds 2) Variation: Z, ZZ, RS, 2RS, N, NR 3) Series: 617xx, 618xx, 619xx, 628, 629, 638, 639, 160xx, 60xx, 62xx, 63xx, 64xx and non-standard series 4) Thin section bearings 617xx, 618xx, 619xx are strongly recommended