22224 E bearing
120 × 215 mm · dynamic rating 652 kN · static rating 765 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
22224 E specification
| Designation | 22224 E |
| Type | Spherical roller bearing |
| Series | 222 light |
| Bore diameter d | 120 mm |
| Outside diameter D | 215 mm |
| Basic dynamic load rating C | 652 kN (652,000 N) |
| Basic static load rating C0 | 765 kN (765,000 N) |
| Ratio C0/C | 1.17 |
| Speed guide, grease lubrication | 3,800 rpm |
| Life exponent p | 10/3 (roller bearing) |
Values come from the Rotec AI bearing catalogue and are indicative. Confirm against the manufacturer's current catalogue before ordering. Not every dimension (such as width) is listed here.
What the designation 22224 E means
| Code | Meaning |
|---|---|
| 222 | Spherical roller bearing, double row self-aligning, light series |
| 24 | bore code "24" = 24 × 5 = 120 mm |
| E | Optimized internal design |
Basic rating life of the 22224 E
Basic rating life is L10 = (C / P)p million revolutions, where P is the equivalent dynamic load and p = 10/3 (roller bearing). For a 22224 E with C = 652 kN, the table shows what that gives at different load levels. It is the ISO 281 basic life only: it does not include lubrication, contamination, misalignment or reliability modifiers.
| C / P | P as share of C | L10 (million rev) | L10 at 1,500 rpm | L10 at 3,000 rpm |
|---|---|---|---|---|
| 3 | 33.3% | 39 | 430 | 220 |
| 5 | 20.0% | 214 | 2,400 | 1,200 |
| 8 | 12.5% | 1,024 | 11,400 | 5,700 |
| 12 | 8.3% | 3,956 | 44,000 | 22,000 |
For example, a C / P of 5 means the equivalent load is 130.4 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 22224 E
Brand-by-brand equivalents for this exact designation are not shown here. The Cross-Reference tool accepts SKF, FAG, NSK, NTN, Timken, Koyo and NRB designations, and shows what is catalogued.
Where the 22224 E is used
Spherical roller bearings are chosen for: Very high radial load with misalignment capability. Typical equipment: Crushers, mills, conveyors, wind main shafts, paper machines. Robust for shock/dust; lubrication and sealing are crucial.
Other sizes in the same series
The 22224 E belongs to the “222 light” series. The next size down, the 22222 E, has a bore of 110 mm and a dynamic rating of 572 kN. The next size up, the 22226 E, has a bore of 130 mm and a rating of 758 kN (+16%).
Common problems on bearings like the 22224 E
Most field failures trace back to lubrication, contamination, fits and alignment rather than the bearing itself. These guides explain how to recognise and prevent them:
Questions about the 22224 E
What are the dimensions of a 22224 E bearing?
The 22224 E has a bore of 120 mm and an outside diameter of 215 mm. It is a spherical roller bearing. Series: 222 light.
What is the load rating of a 22224 E bearing?
In the Rotec AI catalogue the 22224 E has a basic dynamic load rating C of 652 kN and a basic static load rating C0 of 765 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 22224 E bearing?
Use the Cross-Reference tool in Rotec AI to check brand equivalents for the 22224 E.