Spherical roller bearings are designed with two raceways on the inner ring and a spherical raceway on the outer ring, allowing for self-alignment. These bearings feature cylindrical rollers that provide high radial load capacity and can accommodate misalignment between the shaft and housing. This makes them ideal for heavy-duty applications involving impact loads or misalignment.

The inner ring of some spherical roller bearings has a tapered bore, which allows for direct installation or the use of an adapter sleeve when mounting on a cylindrical shaft. The cage can be made from steel stamping, polyamide, or copper alloy, depending on the application requirements.

When installing self-aligning bearings, it's important to use a centering device to prevent the outer ring from tilting or rotating during installation. Some bearings have balls that extend beyond the bearing's side, so the centering device should be recessed to avoid damaging the rolling elements. Bearings are typically installed using mechanical or hydraulic press-fit methods.

For separable bearings, the inner and outer rings can be installed separately, simplifying the assembly process—especially when both rings require an interference fit. When the inner ring is already mounted, care must be taken to ensure proper alignment of the inner and outer rings to prevent damage to the raceways and rolling elements. For cylindrical and needle roller bearings, the inner ring without a flange or rib is usually used, and a mounting sleeve is recommended. The sleeve’s outer diameter should match the inner raceway diameter (d10), and proper machining specifications should be followed. For outer ring needle roller bearings, a mandrel is the best choice for installation.

Recommended Reading:

• New "extreme" bearing information: iglidur Z510
• Industrial bearing protection, maintenance, smooth operation, and cost reduction in rolling mill bearings
• The importance of cooperation with imported rolling bearings
• Basic layout of deep groove ball bearings and analysis of their performance

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