23944/W33

23944/W33 is a self-aligning roller bearing. The core feature lies in its structure where the double-row rollers share the spherical raceway with the outer ring, and the inner ring has two inclined raceways. This design enables automatic alignment, which can accommodate angle deviations caused by installation errors or shaft deflection. It can also withstand large radial loads and bidirectional axial loads. The standard size is an inner diameter of 220mm, an outer diameter of 300mm, and a width of 60mm. The performance parameters may vary slightly depending on the brand. Taking common brands as an example, the basic rated dynamic load is approximately 546-661kN, the static load is approximately 1080kN, the reference rotational speed is 1900-2000r/min, and the ultimate rotational speed is 2200r/min. The outer ring of this bearing is equipped with a lubrication groove and lubrication holes (corresponding to the suffix /W33), which facilitate lubrication supplementation during operation to reduce friction and wear and extend the lifespan. It is widely used in fields such as steel mills and metallurgy, mining equipment, new energy, wind power generation, boiler fans, etc., where there is a demand for bearing capacity and self-aligning performance.