ABEC 9 Molti is a bearing made of high quality carbon steel, which has excellent hardness and strength. It is characterised by the lowest rolling resistance, which is reflected in the American standard Annular Bearing Engineering Committee, abbreviated ABEC, at the highest speed. An important parameter of this bearing is the eccentricity, i.e. the roundness on the raceway in the inner ring, which is only 0.0012 mm. A specially designed metal rubber shield protects the bearing from unwanted dirt. The bearing is designed for roller blades, skateboards and scooters. What do the abbreviations mean? ABEC - the scale was created for bearings for machines whose operation could be disturbed by vibrations of inaccurately manufactured bearings. The scale focuses precisely on the precision of manufacturing and includes 5 designations: ABEC 1, ABEC 3, ABEC 5, ABEC 7, ABEC 9 - the higher the number, the higher the precision. RS - Sealing on one side of the rolling body 608 - symbol