Self-Aligning Ball B. FAG 2220 -K-M-C3

The FAG 2220 -K-M-C3 double-row self-aligning ball bearing with a 100 mm tapered bore reliably compensates for angular misalignment in demanding shaft mountings.

The FAG 2220 -K-M-C3 self-aligning ball bearing is a double-row rolling bearing made from standard bearing steel (100Cr6). Thanks to the hollow-spherical outer ring raceway, the bearing self-aligns during operation and compensates for misalignment and shaft deflection. This version features a tapered bore with a taper ratio of 1:12 and a brass cage. With main dimensions of 100 mm bore diameter, 180 mm outer diameter and 46 mm width, this open bearing is suitable for applications in the temperature range from -30 to +150 degrees Celsius.

What is the 2220 -K-M-C3 self-aligning ball bearing suitable for?

This bearing is primarily used where misalignment occurs between the shaft and the housing, or where shafts deflect elastically under load. The double-row rolling element arrangement primarily absorbs radial forces and low axial forces in both directions. As the manufacturer, FAG, incorporates a solid brass cage here, the ball guidance remains dimensionally stable even under high accelerations, vibrations or thermal stress. Typical applications are therefore found in general mechanical engineering and in industrial drive trains.

What are the advantages of the tapered bore and the C3 clearance?

The suffix ‘K’ denotes the tapered bore, which allows for mounting directly onto a tapered shaft seat or, using a clamping or withdrawal sleeve, onto cylindrical shafts. When the inner ring is pushed onto the shaft, the bearing clearance is measurably reduced, enabling precise adjustment of the operating fit. The slightly increased radial bearing clearance (C3) prevents the bearing from running under stress after installation or as a result of operational heating. As this is an open bearing without an integrated seal, you can precisely match the lubricant and external seals to your environmental conditions.