... Quanlity:ISO9001:2000 Type:Open,ZZ,2RS. 63/32 Hybrid ceramic bearings :Full custom-made as request.Double row, good used ... Applied to electrical machines or motorsMaterial: chrome steel, Stainless steel, Ceramic(ZrO2, Si3N4), Plastic, Carbon steel, etc.Surface Special finish: ... to accommodate axial loads in both directions, in addition to radial loads, even at high speeds. 3) Deep-groove bearings ...