Spherical Roller Bearings SKF 22220 EK/C3

The SKF 22220 EK/C3 self-aligning roller bearing, with a 100 mm bore, 180 mm outer diameter and 46 mm width, offers high load-carrying capacity for demanding industrial applications.

The SKF 22220 EK/C3 self-aligning roller bearing is an open-type roller bearing made from standard rolling-element steel (100Cr6). The design features a tapered bore with a taper ratio of 1:12 and a sheet steel cage. A lubrication system comprising a circumferential groove and lubrication holes in the outer ring allows for relubrication whilst the bearing is in operation. The bearing is suitable for operating temperatures ranging from –30 to +200 degrees.

In which applications does the 22220 EK/C3 self-aligning roller bearing compensate for misalignment?

Design engineers primarily use this self-aligning roller bearing in bearing arrangements subject to heavy radial loads and simultaneous axial loads. Thanks to the spherical outer ring raceway, the component automatically compensates for misalignment and shaft deflection during operation. Typical areas of application include industrial applications subject to high mechanical loads. The open design allows for the selection of the appropriate lubricant – oil or grease – depending on the operating conditions.

What are the assembly benefits of a tapered bore and C3 clearance?

The combination of a tapered inner ring seat and C3 bearing clearance facilitates the assembly of the bearing unit. When mounted on a tapered shaft seat or using a sleeve, the inner ring expands, thereby reducing the initial radial clearance. The increased C3 bearing clearance is designed to compensate for this increase in fit as well as for thermal expansion caused by operation. The P5 precision class ensures low-vibration operation.