C3044-K-AOH3044-G bearing: complete specifications & equivalents
The C3044-K-AOH3044-G is a ISO 15 radial bearing sized 200 x 340 x 90 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 200 mm |
| Outer diameter D | 340 mm |
| Width B | 90 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 1320 kN |
| Basic static load rating C0 | 2040 kN |
| Fatigue load limit Pu | 176 kN |
| Reference speed (thermal) | 1600 rpm |
| Limiting speed (mechanical) | 2200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 36000 g |
| Manufacturer designation | SKF C 3044 K + AOH 3044 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 | 7.874 in |
|---|---|
| Outer diameter D | 13.386 in |
| Width B | 3.543 in |
| ISO bore code | 44 |
| Radial section height (D−d)/2 | 70 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) | 24 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 165 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3044 | 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 C3044-K-AOH3044-G model number is decoded
Digit by digit, C3044-K-AOH3044-G = CARB bearing C 3044 K (220 mm bore, 340 mm OD, 90 mm width) + withdrawal sleeve AOH 3044 G for the 200 mm cylindrical shaft seat; cage and tolerance letters stay with the bearing half of the designation. Sleeve discipline for AOH 3044 G: the taper is matched to the bearing bore, the thread end is for withdrawal tooling; never interchange sleeves between bearings of the same bore size without checking the execution letters — seat length and withdrawal thread differ by execution. Speed note: for C3044-K-AOH3044-G the CARB table lists 1,600 r/min reference and 2,200 r/min limiting speed the permissible speed of the unit is bounded by the CARB bearing's own catalogue values and by the sleeve-seat interface; sleeve-mounted units run marginally cooler-balanced because the sleeve adds a thermal resistance at the 200 mm seat. Dismounting uses the withdrawal thread on AOH 3044 G: pull the sleeve back along its cone with the dedicated withdrawal nut or hydraulic tool — the CARB bearing and sleeve come off the 200 mm seat as one piece and the seat stays undamaged. Spare-parts note: order C3044-K-AOH3044-G as the unit; a bare C 3044 K plus a separately sourced sleeve risks taper mismatch — the catalogue pairing is the guarantee that seat and bore were ground for each other.SKF C 3044 K + AOH 3044 G denotes bearing C 3044 K mounted on withdrawal sleeve AOH 3044 G: a 200 mm shaft seat, 340 mm housing bore, and the sleeve providing the interference a 220 mm tapered bore needs.
Typical equipment & failure modes
Common applications
- long fan and kiln main shafts where the free end must float without thrust load
- heavy industrial gearbox layshafts used as the non-locating position
- winder and reel drums in paper and steel strip plants
- 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
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized seat
- misalignment edge loading when the housing bore is out of square with the shaft seat
Selection pitfalls — read before you substitute
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3044-K-AOH3044-G and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3044-K-AOH3044-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 AOH 3044 G onto a different CARB bearing of the same bore size without verifying the execution letters — seat length and taper contact differ.
- The 1320/2040 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 3044 K + AOH 3044 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 C3044-K-AOH3044-G?
The unit is CARB bearing C 3044 K on withdrawal sleeve AOH 3044 G, fitting a 200 mm shaft (7.874 in), housing bore 340 mm, bearing width 90 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1320 kN, C0 2040 kN, fatigue load limit Pu 176 kN, combined mass about 36.0 kg. Reference speed 1,600 r/min, limiting speed 2,200 r/min (bearing values).
Why does C3044-K-AOH3044-G list a 200 mm shaft size when the bearing bore is 220 mm?
The sleeve takes up the difference: the withdrawal sleeve AOH 3044 G has a tapered outside that engages the bearing's 220 mm tapered bore and a cylindrical bore that seats on the 200 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3044-K-AOH3044-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 3044 K and the sleeve AOH 3044 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 C3044-K-AOH3044-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 C3044-K-AOH3044-G set at mounting?
By sleeve travel: the withdrawal sleeve AOH 3044 G is driven or pressed to a marked travel on the 200 mm seat, which sets the interference into the 220 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.