24080 bearing: complete specifications & equivalents
The 24080 is a ISO 15 radial bearing sized 400 x 600 x 200 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 400 mm |
| Outer diameter D | 600 mm |
| Width B | 200 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 4507 kN |
| Basic static load rating C0 | 8000 kN |
| Fatigue load limit Pu | 560 kN |
| Reference speed (thermal) | 630 rpm |
| Limiting speed (mechanical) | 900 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 205000 g |
| Manufacturer designation | SKF 24080 ECCJ/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 & 24000-series range
| Bore d | 15.748 in |
|---|---|
| Outer diameter D | 23.622 in |
| Width B | 7.874 in |
| ISO bore code | 80 |
| Radial section height (D−d)/2 | 100 mm |
| Smallest bore in 24000-series | 65 mm |
| Largest outer diameter in 24000-series | 700 mm |
| Width range across 24000-series | 35–218 mm |
| Bore position in 24000-series (smallest first) | 23 of 27 |
| Bore above smallest 24000-series size | 335 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 24080 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; D/B cross-verified against Schaeffler HR1 2022; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
| 24080-ECCK30J-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:30) execution on AOH24080 withdrawal sleeve; same ISO 15 envelope, separate order number. |
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 24080 model number is decoded
For a 400 mm shaft carrying heavy radial load with misalignment or deflection, SKF lists 24080 under catalogue execution 24080 ECCJ/W33: two barrel-roller rows on a sphered outer raceway. The code breaks down as type digit 2 (double-row spherical roller), dimension series 40 (dimension series 40 (compact OD, maximum width)), and bore code 80 = 400 mm; dimensions 400×600×200 mm therefore match the ISO 15 envelope. CJ/ECCJ bearings here run a stamped steel window cage rather than the older two-cage CC arrangement; quote the full ECCJ/W33 designation when ordering, and do not assume the K tapered-bore execution is a field conversion. The 560 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.78 C0/C balance shows this execution is tuned to heavy radial-plus-axial duty with misalignment tolerance. For relubrication, route the grease duct to the outer-ring W33 groove position where fitted, and purge until fresh grease appears at the seal — the 200 mm width across two roller rows needs the full charge.
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
- hard-particle indentation of the raceway in unfiltered oil or contaminated grease systems
Selection pitfalls — read before you substitute
- At 400 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 24000-series series at 400 mm bore (600×200 mm) packs maximum roller length into the smallest OD envelope — very high C0 for its size but the lowest speed ceiling; never swap it for a wider-OD 231 bearing without re-checking the housing bore and the speed margin.
- The 24080 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 4507/8000 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
- Open spherical roller bearings rely on the housing seals; in screening or crusher duty a failed seal lets grit into the sphered raceway and the 24080 pits long before its L10 life.
- The 4507/8000 kN ratings are SKF catalogue values for this exact execution (24080 ECCJ/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 24080 (cylindrical bore as listed, tapered-bore 24080 CCK30/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 24080 ECCJ/W33 designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 24080?
The 24080 ECCJ/W33 is a double-row spherical roller bearing with 400 mm bore, 600 mm outer diameter and 200 mm width (15.748 × 23.622 × 7.874 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 4507 kN, C0 8000 kN, fatigue load limit Pu 560 kN, reference speed 630 r/min, limiting speed 900 r/min, mass about 205000 g. It is an open, self-aligning bearing with a stamped sheet-steel window-type cage with low-friction guidance (CJ design).
How does the 24080 bore code work?
The last two digits of 24080 are bore code 80, so 80 × 5 = 400 mm bore. The 600 mm OD and 200 mm width come from the ISO 15 dimension-series plan (dimension series 40 (compact OD, maximum width)), shared with other spherical roller bearings of the same code.
What does the ECCJ/W33 suffix mean on 24080?
The suffix ECCJ/W33 reads ECCJ — the optimized, higher-capacity version of the CJ design, with a stamped sheet-steel window-type cage with low-friction guidance, plus W33 (outer-ring groove and three lubrication holes); CCK30/W33 is the 1:30 tapered-bore counterpart.
Can 24080 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 24080K30 variant be used instead?
Choose the K30 (1:30 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 24080 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.