22222 E bearing
110 × 200 mm · dynamic rating 572 kN · static rating 640 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
22222 E specification
| Designation | 22222 E |
| Type | Spherical roller bearing |
| Series | 222 light |
| Bore diameter d | 110 mm |
| Outside diameter D | 200 mm |
| Basic dynamic load rating C | 572 kN (572,000 N) |
| Basic static load rating C0 | 640 kN (640,000 N) |
| Ratio C0/C | 1.12 |
| Speed guide, grease lubrication | 4,000 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 22222 E means
| Code | Meaning |
|---|---|
| 222 | Spherical roller bearing, double row self-aligning, light series |
| 22 | bore code "22" = 22 × 5 = 110 mm |
| E | Optimized internal design |
Basic rating life of the 22222 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 22222 E with C = 572 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 114.4 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 22222 E
Brand-by-brand equivalents for this exact designation are not yet in the Rotec AI cross-reference tables. The Cross-Reference tool accepts SKF, FAG, NSK, NTN, Timken, Koyo and NRB designations, and shows what is catalogued.
Where the 22222 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 22222 E is size 17 of 19 in the Rotec AI catalogue for the “222 light” series. The next size down, the 22220 E, has a bore of 100 mm and a dynamic rating of 433 kN. The next size up, the 22224 E, has a bore of 120 mm and a rating of 652 kN (+14%).
Common problems on bearings like the 22222 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 22222 E
What are the dimensions of a 22222 E bearing?
The 22222 E has a bore of 110 mm and an outside diameter of 200 mm. It is a spherical roller bearing. Series: 222 light.
What is the load rating of a 22222 E bearing?
In the Rotec AI catalogue the 22222 E has a basic dynamic load rating C of 572 kN and a basic static load rating C0 of 640 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 22222 E bearing?
Brand equivalents for the 22222 E are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.