Enduro has many years of experience in making bearings for industrial applications. You will also notice that with these extremely smooth-running Enduro Bearings ABEC 5 Ball Bearings. These bearings are treated with a high-quality Teflon lubricant (Rheolube 374A) for low rolling resistance and a long life. Most ABEC 5 bearings are fitted with SRS seals. This seal can be lifted with a knife point, making the bearings quick and easy to service. The seal against water and dirt remains guaranteed. ABEC 5 bearings have to pass many tests: noise at high speed, very tight tolerances in inner and outer diameter accuracy, perfect spherical shape, trajectory accuracy and both trajectory and bullet finish. The Abec 5 bearings are available in many sizes and therefore suitable for almost every wheel.