Single Row Deep groove ball bearings 634 635 6300 6301 6302 6303 6304 6305 This type bearings mainly take the radial load as well asmoderate axial load. 3. Series of deep groove ball bearings: 6000, 6200, 6300, 6400, 61800,69100,16000 and so on.  8. Robust inOperation and normallyrequire little maintenance d D B mm mm mm 6306 6307 6308 6309 6310 6311 6312 6313 6314 6315 6316 6317 85 180 41 Common deep groove ball bearing