618/900F3

The 618/900F3 is an optimized low-noise version of the 618 series extra-large deep groove ball bearing. Its core function is to provide "high load capacity + low noise" dual guarantees for the critical rotating parts of large heavy-duty industrial equipment, specifically tailored for large-sized shaft-type transmission scenarios with strict requirements for operational quietness. This model continues the basic attributes of the 618 series "6" - deep groove ball bearings, featuring a simple structure and convenient installation. The 900mm ultra-large inner diameter can precisely match the assembly requirements of large equipment shafts, and the 1090mm outer diameter and 85mm width design can adapt to the installation space of large-sized transmission systems in heavy machinery. The rear code F3 clearly indicates its low-noise optimized design. Through process improvements such as enhancing ball precision, ultra-precision processing of raceways, and adapting lubrication schemes, it can effectively reduce vibration and noise during operation. The raceways and balls of this model are made of GCR15 (AISI 52100) high-carbon chromium bearing steel, and the cage is made of brass. This design ensures high strength and wear resistance under heavy-duty conditions, and through the low-noise optimized design, it is suitable for scenarios with strict environmental noise control. It can stably withstand radial loads and certain axial loads under heavy-duty conditions. This bearing is widely used in industries such as metallurgical steel mills, wind power energy, mining, heavy machinery manufacturing, shipbuilding, and others. It is commonly found in key parts such as the main shafts of large fans, heavy-load transmission devices in steel mills, rotating components of mining machinery, and ship power systems. It can not only meet the long-term stable operation requirements under large-sized and heavy-duty conditions but also reduce the impact of equipment operation on the surrounding environment through low-noise characteristics. At the same time, combined with the advantage of spot supply, it provides reliable core support for the efficient and low-noise operation of large equipment in related industries.