22328 CC/W33 bearing
140 × 300 mm · dynamic rating 1357 kN · static rating 1560 kN. Dimensions, load ratings, designation meaning, life estimates and equivalent parts.
22328 CC/W33 specification
| Designation | 22328 CC/W33 |
| Type | Spherical roller bearing |
| Series | 223 medium |
| Bore diameter d | 140 mm |
| Outside diameter D | 300 mm |
| Basic dynamic load rating C | 1357 kN (1,357,000 N) |
| Basic static load rating C0 | 1560 kN (1,560,000 N) |
| Ratio C0/C | 1.15 |
| Speed guide, grease lubrication | 2,200 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 22328 CC/W33 means
| Code | Meaning |
|---|---|
| 223 | Spherical roller bearing, double row self-aligning, medium series (higher capacity) |
| 28 | bore code "28" = 28 × 5 = 140 mm |
Basic rating life of the 22328 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 22328 CC/W33 with C = 1357 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 271.4 kN on this bearing. Use the Load Calculator to work out P for your actual radial and axial loads.
Equivalents of the 22328 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 22328 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 22328 CC/W33 is size 17 of 23 in the Rotec AI catalogue for the “223 medium” series. The next size down, the 22326 CC/W33, has a bore of 130 mm and a dynamic rating of 1176 kN. The next size up, the 22330 CC/W33, has a bore of 150 mm and a rating of 1539 kN (+13%).
Common problems on bearings like the 22328 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 22328 CC/W33
What are the dimensions of a 22328 CC/W33 bearing?
The 22328 CC/W33 has a bore of 140 mm and an outside diameter of 300 mm. It is a spherical roller bearing. Series: 223 medium.
What is the load rating of a 22328 CC/W33 bearing?
In the Rotec AI catalogue the 22328 CC/W33 has a basic dynamic load rating C of 1357 kN and a basic static load rating C0 of 1560 kN. Always confirm against the manufacturer's current catalogue.
What is the equivalent of a 22328 CC/W33 bearing?
Brand equivalents for the 22328 CC/W33 are not yet in the Rotec AI tables. Use the Cross-Reference tool to check other designations.