C3092-KM-AOHX3092-G bearing: complete specifications & equivalents
The C3092-KM-AOHX3092-G is a ISO 15 radial bearing sized 440 x 680 x 163 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 440 mm |
| Outer diameter D | 680 mm |
| Width B | 163 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 4000 kN |
| Basic static load rating C0 | 7500 kN |
| Fatigue load limit Pu | 520 kN |
| Reference speed (thermal) | 700 rpm |
| Limiting speed (mechanical) | 950 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 230000 g |
| Manufacturer designation | SKF C 3092 KM + AOHX 3092 G |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves |
| Last verified | 2026-09-29 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves) · extracted 2026-09-29
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves); 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 & carb-withdrawal-sleeve range
| Bore d | 17.323 in |
|---|---|
| Outer diameter D | 26.772 in |
| Width B | 6.417 in |
| ISO bore code | 92 |
| Radial section height (D−d)/2 | 120 mm |
| Smallest bore in carb-withdrawal-sleeve | 35 mm |
| Largest outer diameter in carb-withdrawal-sleeve | 1580 mm |
| Width range across carb-withdrawal-sleeve | 23–462 mm |
| Bore position in carb-withdrawal-sleeve (smallest first) | 36 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 405 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3092 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 C3092-KM-AOHX3092-G model number is decoded
Housing side of C3092-KM-AOHX3092-G is conventional: a 680 mm H7 bore takes the CARB outer ring, which is free to slide axially in the housing — the toroidal raceway handles the misalignment and the sleeve side handles the location on the 440 mm shaft.SKF C 3092 KM + AOHX 3092 G denotes bearing C 3092 KM mounted on withdrawal sleeve AOHX 3092 G: a 440 mm shaft seat, 680 mm housing bore, and the sleeve providing the interference a 460 mm tapered bore needs.The code breaks into bearing C 3092 KM and withdrawal sleeve AOHX 3092 G: C marks the CARB type, the digit group the 460 mm bore size, the following letters the cage/tolerance execution, and the sleeve designation its own SKF number — sleeve and bearing are keyed to each other and must be ordered as the pair C3092-KM-AOHX3092-G. Why a withdrawal sleeve at 440 mm shaft: adapter-sleeve locknut forces become impractical on the 460 mm bore; the AOHX 3092 G execution lets the fitter generate mounting interference with manageable forces and remove the unit later without damaging the seat. The C0/C balance of about 1.88 shows the non-locating CARB character: heavy radial capacity with tolerance of misalignment and axial float — the withdrawal sleeve adds the plain-shaft mounting ability, not thrust capability. Record the sleeve travel at mounting of C3092-KM-AOHX3092-G: the clearance set into the 460 mm bearing today is the reference for the next re-clearance check, and travel data catches seat wear on the 440 mm shaft over the years.
Typical equipment & failure modes
Common applications
- continuous-caster guide rolls and slab-caster segments under heat growth
- vibrating screen exciters fitted with the VE240 tolerance execution
- long fan and kiln main shafts where the free end must float without thrust load
- winder and reel drums in paper and steel strip plants
Known failure patterns
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
- misalignment edge loading when the housing bore is out of square with the shaft seat
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
Selection pitfalls — read before you substitute
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3092-KM-AOHX3092-G and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Sleeve and bearing are a matched taper pair: never fit sleeve AOHX 3092 G onto a different CARB bearing of the same bore size without verifying the execution letters — seat length and taper contact differ.
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3092-KM-AOHX3092-G and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- The 4000/7500 kN ratings are SKF catalogue 17000 values for the CARB bearing; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification.
- Quote the full unit designation SKF C 3092 KM + AOHX 3092 G when purchasing — bearing and sleeve execution letters are part of the order number and define the matched taper pair.
Frequently asked questions
What are the dimensions and catalogue data of C3092-KM-AOHX3092-G?
The unit is CARB bearing C 3092 KM on withdrawal sleeve AOHX 3092 G, fitting a 440 mm shaft (17.323 in), housing bore 680 mm, bearing width 163 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 4000 kN, C0 7500 kN, fatigue load limit Pu 520 kN, combined mass about 230.0 kg. Reference speed 700 r/min, limiting speed 950 r/min (bearing values).
Why does C3092-KM-AOHX3092-G list a 440 mm shaft size when the bearing bore is 460 mm?
The sleeve takes up the difference: the withdrawal sleeve AOHX 3092 G has a tapered outside that engages the bearing's 460 mm tapered bore and a cylindrical bore that seats on the 440 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3092-KM-AOHX3092-G a locating or non-locating bearing?
Non-locating. The CARB toroidal roller bearing is designed as the free end of the shaft: its raceway geometry tolerates misalignment and allows axial float, while a separate locating bearing (typically a spherical roller or paired taper) takes the thrust. The sleeve does not change this function.
Can I buy the bearing C 3092 KM and the sleeve AOHX 3092 G separately?
The components are catalogued separately, but the taper pair is matched — the sleeve seat and the bearing bore are manufactured to the same execution. Ordering the unit C3092-KM-AOHX3092-G as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C3092-KM-AOHX3092-G set at mounting?
By sleeve travel: the withdrawal sleeve AOHX 3092 G is driven or pressed to a marked travel on the 440 mm seat, which sets the interference into the 460 mm bore and with it the radial clearance. Record the travel; hydraulic assistance is standard at this size.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves on 2026-09-29. Read our editorial & correction policy.