23040F3/W33

23040F3/W33 is a double-row self-aligning roller bearing with an inner diameter of 200mm, an outer diameter of 310mm, and a width of 82mm (F3 represents a specific radial clearance group and optimized structural design, and W33 indicates the outer ring with a ring-shaped lubrication groove and 3 lubrication holes). The core function is to be a shaft system support component that can withstand heavy loads and stable working conditions, featuring high load capacity, self-aligning property, universal adaptability, and online lubrication maintenance capabilities. It can compensate for an installation misalignment of 2° and can bear large radial loads and bidirectional medium axial loads. The cylindrical hole is suitable for standardized installation with a flanged shaft neck, without the need for additional tightening/retaining sleeves. The W33 structure of the outer ring supports online lubrication replenishment without stopping the machine, which can extend the bearing maintenance cycle and service life. Compared to the F3 model without W33, it is more suitable for heavy-load equipment with long-term operation and high lubrication maintenance frequency. Compared to the K-type with conical holes, it is more suitable for fixed flanged shaft shoulders and less disassembly in the base stable working condition. It is the preferred support solution for heavy-load equipment with low vibration and impact, stable installation base, and long-term continuous operation, such as the working rolls of metallurgical rolling mills, the pressing rolls of paper machinery, the supporting rollers of cement rotary kilns, the main shafts of heavy fans, and the output shafts of large reducers. It can achieve a balance of high rigidity support, convenient lubrication maintenance, and low comprehensive operation and maintenance costs in a stable load environment.