239/500CA/W33

239/500CA/W33 is a self-aligning roller bearing specifically designed for heavy industrial large equipment. The core feature lies in the "low-speed heavy-load, installation prone to deviation, and convenient maintenance" demanding scenarios. Through the combination of "CA brass cage + W33 lubrication structure + double-row self-aligning design", it provides stable bearing capacity and efficient maintenance support for key equipment such as mining crushers, metallurgical rotary kilns, and large ball mills. It balances the reliability of heavy-load operation and the convenience of maintenance. The specific core values are reflected in three aspects: Firstly, in terms of structure, the double-row spherical rollers combined with spherical raceways can automatically compensate for 1° - 2.5° of the angle deviation between the shaft and the bearing housing, solving the problems of difficult control of installation accuracy and easy shaft deflection during operation of large machinery; the CA suffix indicates a brass integral cage, which is more rigid and has good impact resistance, can disperse heavy-load pressure, and is suitable for high-frequency impact and long-term full-load working conditions. Secondly, in terms of lubrication, the W33 suffix means that the outer ring has a ring-shaped lubrication groove + 3 lubrication holes, which supports external direct grease addition or connection to a centralized lubrication system, allowing for maintenance without disassembling the equipment, significantly reducing downtime in mining and metallurgical high-pollution scenarios. Thirdly, in terms of size and load capacity, the large specification of 500mm inner diameter, 670mm outer diameter, and 128mm width is suitable for the demand of ultra-large shaft diameter equipment; the basic rated dynamic load is approximately 3800kN, and the static load is approximately 6200kN (based on brand parameters), capable of withstanding extreme radial loads and meeting the long-term operation requirements of low-speed heavy-load equipment.