22230 bearing: complete specifications & equivalents
The 22230 is a ISO 15 radial bearing sized 150 x 270 x 73 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 150 mm |
| Outer diameter D | 270 mm |
| Width B | 73 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 898 kN |
| Basic static load rating C0 | 1080 kN |
| Fatigue load limit Pu | 102 kN |
| Reference speed (thermal) | 2200 rpm |
| Limiting speed (mechanical) | 3000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 18000 g |
| Manufacturer designation | SKF 22230 CC/W33 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 22200-series range
| Bore d | 5.906 in |
|---|---|
| Outer diameter D | 10.63 in |
| Width B | 2.874 in |
| ISO bore code | 30 |
| Radial section height (D−d)/2 | 60 mm |
| Smallest bore in 22200-series | 25 mm |
| Largest outer diameter in 22200-series | 580 mm |
| Width range across 22200-series | 18–150 mm |
| Bore position in 22200-series (smallest first) | 21 of 32 |
| Bore above smallest 22200-series size | 125 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22230-CCK-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) execution on H3130 adapter sleeve; same ISO 15 envelope, separate order number. |
| C2230 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF CARB toroidal bearing C 2230 shares the 150×270×73 mm envelope but catalogue C/C0 differ (980/1220 kN vs 898/1080 kN); it floats axially and cannot locate the shaft — pair, never swap one-for-one. |
| C2230-K | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF CARB toroidal bearing C 2230 K shares the 150×270×73 mm envelope but catalogue C/C0 differ (980/1220 kN vs 898/1080 kN); it floats axially and cannot locate the shaft — pair, never swap one-for-one. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 22230 model number is decoded
For a 150 mm shaft carrying heavy radial load with misalignment or deflection, SKF lists 22230 under catalogue execution 22230 CC/W33: two barrel-roller rows on a sphered outer raceway. The code breaks down as type digit 2 (double-row spherical roller), dimension series 22 (dimension series 22 (medium OD, wide)), and bore code 30 = 150 mm; dimensions 150×270×73 mm therefore match the ISO 15 envelope. In SKF suffix language, E marks the optimized high-capacity design and CC/W33 the pressed-steel-cage execution with relubrication groove; both are open bearings — the sealed variant carries the 2CS5 suffix and the vibrating-screen execution VA405. The 102 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.20 C0/C balance shows this execution is tuned to heavy radial-plus-axial duty with misalignment tolerance. Spherical roller bearings are routinely specified with C3 clearance because the tight inner-ring fit and inner/outer temperature gradient eat into the CN running clearance — check the residual clearance after mounting with feeler gauges.
Typical equipment & failure modes
Common applications
- steel-plant continuous-caster segments
- large induced-draft fan rotors
- SAG and ball-mill drive shafts
- large mining crusher main shafts
Known failure patterns
- raceway fatigue spalling of the sphered outer raceway after extended service above the catalogue L10 rating
- inner-ring raceway spalling from edge loading when misalignment exceeds the self-aligning recovery range
- stamped-steel cage fatigue after long service in high-vibration screening duty without the VA405 execution
- surface distress and smearing when the relubrication interval is exceeded — the W33 groove is only effective if grease actually reaches the roller rows
- brinelling from static overload or impact during handling and mounting
Selection pitfalls — read before you substitute
- At 150 mm bore the ring mass makes cocking during mounting a real risk; guide the bearing square, confirm seat contact around the full circumference, and re-check the self-aligning swing after the housing cap is torqued down.
- The 22200-series series at 150 mm bore (270×73 mm) is the general-purpose spherical roller envelope; stepping up to 223 adds capacity and width, stepping to 230 trims the OD — neither is interchangeable without re-checking shoulders and speed.
- Catalogue reference speed and limiting speed are different limits: the 2,200 r/min reference is a thermal criterion under load, while the 3,000 r/min limiting value is the mechanical ceiling — observe both.
- Never use the tapered-bore EK/K variant's drive-up figures on this cylindrical-bore 22230; clearance reduction targets differ, and over-driving a cylindrical bore onto an oversized journal cracks the inner ring.
- The 898/1080 kN ratings are SKF catalogue values for this exact execution (22230 CC/W33); SKF can revise internal geometry without changing the order number, so keep the catalogue version (SKF catalogue PUB BU/P1 17000) with the specification and re-verify for critical drives.
- SKF lists several executions of 22230 (cylindrical bore as listed, tapered-bore 22230 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 22230 CC/W33 designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 22230?
The 22230 CC/W33 is a double-row spherical roller bearing with 150 mm bore, 270 mm outer diameter and 73 mm width (5.906 × 10.63 × 2.874 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 898 kN, C0 1080 kN, fatigue load limit Pu 102 kN, reference speed 2,200 r/min, limiting speed 3,000 r/min, mass about 18000 g. It is an open, self-aligning bearing with two pressed-steel cages with a floating guide ring.
How does the 22230 bore code work?
The last two digits of 22230 are bore code 30, so 30 × 5 = 150 mm bore. The 270 mm OD and 73 mm width come from the ISO 15 dimension-series plan (dimension series 22 (medium OD, wide)), shared with other spherical roller bearings of the same code.
What does the CC/W33 suffix mean on 22230?
CC denotes two pressed-steel cages with a floating guide ring between the roller rows, and W33 adds an annular groove plus three lubrication holes in the outer ring for relubrication. CCK/W33 is the 1:12 tapered-bore counterpart.
Can 22230 accommodate misalignment and axial load?
Yes on both counts. The sphered outer raceway lets the bearing self-align ≈ 0.5–2.5° depending on series, absorbing shaft deflection and housing-seat errors. The two barrel-roller rows also carry bidirectional axial load in addition to heavy radial load — this is the key difference from cylindrical roller bearings, which take no axial load.
When should the tapered-bore 22230K variant be used instead?
Choose the K (1:12 tapered bore) variant when the bearing must seat on an adapter or withdrawal sleeve — typical for long shafts, frequent dismounting, or stepped shafts where machining a precision journal is impractical. Sleeve mounting requires measuring clearance reduction or axial drive-up, not nut torque. The cylindrical-bore 22230 listed here seats directly on a machined journal.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings on 2026-09-26. Read our editorial & correction policy.