Here's a more detailed explanation:
Key Features:
Inner Ring Ribs:
The inner ring has ribs, which can be a central rib or two edge ribs, that act as guides for the rollers.
Cages:
Spherical roller bearings with inner ring ribs often utilize solid brass cages, or sheet metal cages, depending on the specific design.
Roller Guidance:
The ribs on the inner ring, along with the cage, work together to guide the spherical rollers, ensuring they roll smoothly and efficiently.
High Load Capacity:
These bearings are designed for high radial and axial loads, making them suitable
for demanding applications.
Misalignment Tolerance:
Spherical roller bearings, in general, can accommodate angular misalignment between the shaft and housing. Design Variations:
Design B or No Suffix: Solid brass or sheet metal cages are common in these designs.
Suffix MB/MB1: Solid brass cages, guided on the inner ring.
Suffix MA/MA1: Solid brass cages, guided on the outer ring.
Suffix E1/BE: Sheet steel cages or solid cages made from polyamide
PA66. Some versions have a guiding ring or loose central rib, while others have solid cages according to Schaeffler medias.
Applications:
Spherical roller bearings with inner ring ribs are used in various industries where high
load capacity and misalignment capabilities are required, such as: Heavy machinery,
Mining equipment, Steel mills, and Pulp and paper mills