24092-ECAK30-W33 bearing: complete specifications & equivalents
The 24092-ECAK30-W33 is a ISO 15 radial bearing sized 460 x 680 x 218 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 460 mm |
| Outer diameter D | 680 mm |
| Width B | 218 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass, machined (M1) |
| Basic dynamic load rating C | 5401 kN |
| Basic static load rating C0 | 10000 kN |
| Fatigue load limit Pu | 670 kN |
| Reference speed (thermal) | 480 rpm |
| Limiting speed (mechanical) | 800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 300000 g |
| Manufacturer designation | SKF 24092 ECAK30/W33 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.3 withdrawal-sleeve executions |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.3 withdrawal-sleeve executions) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.3 withdrawal-sleeve executions); 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 | 18.11 in |
|---|---|
| Outer diameter D | 26.772 in |
| Width B | 8.583 in |
| ISO bore code | 92 |
| Radial section height (D−d)/2 | 110 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) | 26 of 27 |
| Bore above smallest 24000-series size | 395 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 24092 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:30) sleeve-mounted execution of 24092; identical ISO 15 envelope, fits AOH24092 withdrawal sleeve on a 440 mm shaft. |
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 24092-ECAK30-W33 model number is decoded
In SKF catalogue PUB BU/P1 17000, 24092-ecak30-w33 denotes the tapered-bore version (K30 suffix, taper 1:30) of the 24000-series spherical roller bearing: dimensioned 460×680×218 mm, it seats on an adapter or withdrawal sleeve rather than directly on a machined journal. 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 92 = 460 mm; dimensions 460×680×218 mm therefore match the ISO 15 envelope. Reading the suffix on 24092-ecak30-w33, the K30 (or EK/CCK30) element changes only the bore — 1:30 taper for sleeve mounting — while the rest of the suffix chain (CC cages with W33 groove) keeps the same internal design, cage and W33 relubrication features as the cylindrical-bore 24092-ecak30-w33. The 110.0 mm radial section height ((680−460)/2) and 300000 g catalogue mass frame a 460 mm bore bearing rated at 5401 kN C — roughly 11.74 kN of dynamic capacity per millimetre of bore before application factors. On an H adapter sleeve the 460 mm shaft seat only needs an h9 plain journal; slide the sleeve into the 24092-ecak30-w33 inner ring, tighten the KM nut against the MB washer until the catalogue clearance-reduction value is reached, then lock the washer tab.
Typical equipment & failure modes
Common applications
- wind-turbine main shaft support
- heavy rolling-mill work-roll chocks
- heavy crusher and screen shafts mounted and dismounted with hydraulic nuts
- long through-shafts in conveyors, where a sleeve seat avoids a precision journal
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
- sleeve seizure and shaft seat damage from omitting the anti-seize film between withdrawal sleeve and journal before drive-up
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- smearing on the roller-raceway contact during skid starts below the minimum load
Selection pitfalls — read before you substitute
- At 460 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 460 mm bore (680×218 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 24092-ecak30-w33 and its cylindrical-bore counterpart 24092-ecak30-w33 share envelope and load ratings (5401/10000 kN) but are not interchangeable in a housing already fitted for direct shaft mounting — the sleeve changes the assembly stack-up.
- A loose sleeve after the first weeks of service usually means inadequate initial drive-up; re-checking clearance without dismounting is possible through the 218 mm-wide roller rows with feeler gauges — do not simply tighten the KM nut until vibration stops.
- Never use the tapered-bore CCK30/K30 variant's drive-up figures on this cylindrical-bore 24092-ecak30-w33; clearance reduction targets differ, and over-driving a cylindrical bore onto an oversized journal cracks the inner ring.
- The 5401/10000 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 24092 ECAK30/W33); sleeve, KM nut and MB washer are separate order numbers, and the catalogue version (SKF catalogue PUB BU/P1 17000) should travel with the mounting specification.
Frequently asked questions
What are the dimensions and catalogue data of 24092-ecak30-w33?
The SKF 24092 ECAK30/W33 is a double-row spherical roller bearing with a 1:30 tapered bore, 460 mm nominal bore, 680 mm outer diameter and 218 mm width (18.11 × 26.772 × 8.583 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: C 5401 kN, C0 10000 kN, Pu 670 kN, reference speed 480 r/min, limiting speed 800 r/min, mass about 300000 g. It is mounted on an adapter (H) or withdrawal (AH) sleeve, not directly on the shaft.
What does the K30 suffix mean on 24092-ecak30-w33?
K30 (written CCK30/W33 in the CC execution) marks the 1:30 tapered bore for sleeve mounting. The bearing seats on an H-series adapter sleeve with a KM locknut and MB lock washer (plain shaft, h9 tolerance), or on an AH withdrawal sleeve against a shaft shoulder.
Which adapter sleeve fits the 24092-ecak30-w33?
The sleeve is selected by the actual shaft diameter in millimetres, not only by the 460 mm nominal bore: SKF H-sleeve numbers each cover a small shaft-diameter range and are width-series specific (H39/H30/H31/H32 matching dimension series 39/40/31/32), and each kit bundles the sleeve, KM locknut and MB lock washer. For shoulder locations use an AH withdrawal sleeve instead. Confirm the sleeve number against the SKF catalogue PUB BU/P1 17000 mounting tables for your shaft size.
How is the 24092-ecak30-w33 driven up and checked?
Mounting is controlled by radial-clearance reduction or axial drive-up distance from the SKF catalogue tables for the 1:30 taper, never by locknut torque. Measure clearance with feeler gauges before and after tightening the KM nut, stop at the tabulated decrease, and lock the MB washer tab. Over-drive removes too much clearance (inner-ring cracking risk); under-drive lets the sleeve creep and fret.
What is the difference between 24092-ecak30-w33 and 24092-ecak30-w33?
They share the ISO 15 envelope and the same 5401/10000 kN ratings, but 24092-ecak30-w33 has the 1:30 tapered bore for sleeve mounting on a plain shaft, while 24092-ecak30-w33 has a cylindrical bore for direct mounting on a machined interference journal (typically m6 with H7 housing). They are separate order numbers, not interchangeable in the same shaft arrangement.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.3 withdrawal-sleeve executions on 2026-09-26. Read our editorial & correction policy.