22330 CC/W33 bearing
150 × 320 mm · dynamic rating 1539 kN · static rating 1760 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
22330 CC/W33 specification
| Designation | 22330 CC/W33 |
| Type | Spherical roller bearing |
| Series | 223 medium |
| Bore diameter d | 150 mm |
| Outside diameter D | 320 mm |
| Basic dynamic load rating C | 1539 kN (1,539,000 N) |
| Basic static load rating C0 | 1760 kN (1,760,000 N) |
| Ratio C0/C | 1.14 |
| Speed guide, grease lubrication | 2,000 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 22330 CC/W33 means
| Code | Meaning |
|---|---|
| 223 | Spherical roller bearing, double row self-aligning, medium series (higher capacity) |
| 30 | bore code "30" = 30 × 5 = 150 mm |
Basic rating life of the 22330 CC/W33
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 22330 CC/W33 with C = 1539 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 307.8 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 22330 CC/W33
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 22330 CC/W33 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 22330 CC/W33 is size 18 of 23 in the Rotec AI catalogue for the “223 medium” series. The next size down, the 22328 CC/W33, has a bore of 140 mm and a dynamic rating of 1357 kN. The next size up, the 22332 CC/W33, has a bore of 160 mm and a rating of 1680 kN (+9%).
Common problems on bearings like the 22330 CC/W33
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 22330 CC/W33
What are the dimensions of a 22330 CC/W33 bearing?
The 22330 CC/W33 has a bore of 150 mm and an outside diameter of 320 mm. It is a spherical roller bearing. Series: 223 medium.
What is the load rating of a 22330 CC/W33 bearing?
In the Rotec AI catalogue the 22330 CC/W33 has a basic dynamic load rating C of 1539 kN and a basic static load rating C0 of 1760 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 22330 CC/W33 bearing?
Brand equivalents for the 22330 CC/W33 are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.