NEEDLE ROLLER BEARING NR1,5X11,8 - 1,5X11,8 - Bag of 25 pieces

NRB3X8G2/130 bearing needle rollers are cylindrical elements made of hardened alloy steel (typically 100Cr6), precision ground to ensure tight tolerances on diameter and length. The surface is highly polished or burnished to reduce friction and wear, ensuring smooth sliding within the cages. Used as rolling elements in roller gears or cylindrical roller bearings, needle rollers support high radial loads and offer long-term fatigue resistance. Quality control includes checking for roundness (circling), surface roughness (low Ra) and hardness (HRC 60–64), to ensure consistent performance even in harsh environments and at high speeds.