32221

The 32221 single-row tapered roller bearing is a robust component engineered to handle demanding combined loads in a wide array of industrial machinery. Its fundamental design features tapered rollers running between conical raceways on both the inner ring (cone) and outer ring (cup). This geometry is specifically optimized to manage simultaneous high radial and high axial forces, with the capacity to take axial loads in one direction. Measuring 105 mm for the bore, 190 mm for the outer diameter, and a total width of 53 mm, the bearing is rated for substantial forces, boasting a basic dynamic load rating of approximately 443 kN and a static rating around 510 kN.

A key functional advantage of the 32221 is its separable design: the cone assembly (inner ring, rollers, and cage) can be mounted independently of the cup (outer ring). This feature greatly simplifies the complex processes of mounting, dismounting, and maintenance. Due to its internal construction, this bearing is almost always deployed in a mirror-image, back-to-back, or face-to-face arrangement with a second tapered roller bearing. This paired setup is essential for managing axial forces from both directions and for establishing the necessary operational clearance or preload, allowing the assembly to achieve high system rigidity and precise shaft guidance in heavy-duty applications like automotive hubs, gearboxes, and rolling mills.

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