618/500M/C4S0

The 618/500M/C4S0 is a customized high-performance single row deep groove ball bearing. Its core function is to serve as a specialized key component for large equipment operating under high-temperature and heavy-load conditions. By relying on its exclusive structure and performance design, it meets the core requirements of large machinery in terms of the stability, high-temperature resistance, and anti-deformation ability of rotating components. It maintains the large-sized dimensions of the 618 series, with an inner diameter of 500mm, an outer diameter of 620mm, and a width of 56mm. The M mark indicates its basic structural characteristics, while the suffix C4 represents a larger internal clearance than C3, which can effectively compensate for the thermal expansion caused by friction during the operation of large equipment, preventing the bearing from getting stuck due to thermal expansion and meeting the working characteristics of large heavy-load equipment. The suffix S0 indicates that the bearing rings have undergone high-temperature tempering treatment, with a working temperature of up to 150 degrees Celsius, capable of handling various medium-high temperature operation scenarios. This bearing can withstand a dynamic load of 300kN and a static load of 510kN. When paired with a conventional configuration of high-carbon chromium bearing steel body and stamped steel cage, it can simultaneously bear radial loads and bidirectional axial loads. The oil lubrication limit speed is 1060r/min, and the grease lubrication reference speed is 2000r/min, meeting the running requirements of most large equipment with low-speed and heavy-load operations. It is suitable for high-temperature and heavy-load scenarios in metallurgy, heavy machinery, and other fields, as well as stable transmission requirements in fluid control equipment and general machinery. The structure is simple and easy to install and maintain, serving as a key component of the rotating shaft system of large machinery, providing reliable support for the smooth and long-term operation of equipment under various working conditions.