Spherical roller bearings

Spherical roller bearings are self-aligning bearings with two rows of rollers and a spherical raceway on the outer ring. This construction allows them to support high radial loads and axial loads in both directions, while tolerating angular misalignment between shaft and housing, whether due to shaft deflection or mounting errors. They are chosen when the application combines significant load with shafts that are not perfectly aligned, for example in belt-driven equipment or machines subjected to vibration.

In MR's catalog you will find series such as 213 and 222, which are the most common designations within SKF spherical roller bearings. The 213 series corresponds to two-row bearings with brass or steel cage, and the 222 series to the two-row version with spherical raceway, widely used in industrial applications. The suffixes in the references, such as E, KTN9, or C3, indicate design variants: E often denotes an optimized design with higher load capacity, KTN9 a polyamide cage type, and C3 a greater internal clearance than normal, necessary when the bearing operates at elevated temperature or with mounting fits that reduce clearance.

Typical applications of spherical roller bearings include power transmission equipment, conveyor belts, food industry machinery, industrial fans, pumps, and gearboxes. They are also used in split plummer block housings and in assemblies where the shaft may flex under load. Being self-aligning, they absorb small alignment errors without generating additional stresses on the shaft or housing.

To request a quote for a spherical roller bearing, you need to provide the complete part number shown on the bearing or drawing, for example 21311 E or SRV.20207 KTN9/C3. If you don't have the part number, send us the main dimensions: bore diameter, outside diameter, and width, and if possible a photo of the part. With that data we can identify the equivalent reference and confirm the quote.

MR Accesorios Industriales SRL markets SKF spherical roller bearings with over 1320 references. If you need assistance selecting the appropriate series or clearance, write to us via WhatsApp or email with the part number or dimensions and we will respond promptly.