C3080-KM-AOH3080-G bearing: complete specifications & equivalents
The C3080-KM-AOH3080-G is a ISO 15 radial bearing sized 380 x 600 x 148 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 380 mm |
| Outer diameter D | 600 mm |
| Width B | 148 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 3650 kN |
| Basic static load rating C0 | 6200 kN |
| Fatigue load limit Pu | 450 kN |
| Reference speed (thermal) | 800 rpm |
| Limiting speed (mechanical) | 1100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 165000 g |
| Manufacturer designation | SKF C 3080 KM + AOH 3080 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 | 14.961 in |
|---|---|
| Outer diameter D | 23.622 in |
| Width B | 5.827 in |
| ISO bore code | 80 |
| Radial section height (D−d)/2 | 110 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) | 33 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 345 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3080 | 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 C3080-KM-AOH3080-G model number is decoded
Withdrawal sleeve AOH 3080 G: at this size the sleeve is pulled onto the 380 mm seat (hydraulic assistance is standard) and its taper sets the interference into the 400 mm bearing bore — dismounting uses the sleeve's withdrawal thread, protecting shaft and bearing raceways. Dividing C 3650 kN by the 400 mm bore gives 9.13 kN per millimetre of journal — compare this density against neighbouring CARB sizes when the 380 mm seat is fixed and the life requirement is not. Mounting C3080-KM-AOH3080-G at this size: warm the bearing, drive the withdrawal sleeve to its marked travel on the 380 mm seat and verify the residual radial clearance of the 400 mm CARB bearing before the unit cools — the marked travel is the setting record for the next overhaul. The unit's temp range follows the bearing: -40 to +120 °C continuous for the standard execution; cage and sleeve execution letters on C 3080 KM and AOH 3080 G must be checked against the application temperature before substitution.SKF C 3080 KM + AOH 3080 G denotes bearing C 3080 KM mounted on withdrawal sleeve AOH 3080 G: a 380 mm shaft seat, 600 mm housing bore, and the sleeve providing the interference a 400 mm tapered bore needs.Numbering logic: the bearing half C 3080 KM follows the CARB works numbering (type C, dimension series, 400 mm bore), while AOH 3080 G identifies the sleeve execution for that bore; the combo C3080-KM-AOH3080-G exists in the catalogue so that shaft (380 mm), housing (600 mm) and both components are specified with one order number.
Typical equipment & failure modes
Common applications
- vibrating screen exciters fitted with the VE240 tolerance execution
- 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
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
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
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- misalignment edge loading when the housing bore is out of square with the shaft seat
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
Selection pitfalls — read before you substitute
- Keep the pair complete in stores: storing bearing C 3080 KM and sleeve AOH 3080 G on different shelves is how taper-mismatch accidents start — store the unit as received under one part number.
- Do not re-use a sleeve that shows taper scuffing: a scratched cone changes the travel-to-clearance relationship of the whole C3080-KM-AOH3080-G unit — replace the sleeve with the bearing.
- Protect the 380 mm seat: sleeve bore corrosion or seat ovality shows up later as sleeve creep and fretting; inspect and measure the seat at every dismounting of C3080-KM-AOH3080-G.
- The 3650/6200 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 3080 KM + AOH 3080 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 C3080-KM-AOH3080-G?
The unit is CARB bearing C 3080 KM on withdrawal sleeve AOH 3080 G, fitting a 380 mm shaft (14.961 in), housing bore 600 mm, bearing width 148 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 3650 kN, C0 6200 kN, fatigue load limit Pu 450 kN, combined mass about 165.0 kg. Reference speed 800 r/min, limiting speed 1,100 r/min (bearing values).
Why does C3080-KM-AOH3080-G list a 380 mm shaft size when the bearing bore is 400 mm?
The sleeve takes up the difference: the withdrawal sleeve AOH 3080 G has a tapered outside that engages the bearing's 400 mm tapered bore and a cylindrical bore that seats on the 380 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3080-KM-AOH3080-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 3080 KM and the sleeve AOH 3080 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 C3080-KM-AOH3080-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 C3080-KM-AOH3080-G set at mounting?
By sleeve travel: the withdrawal sleeve AOH 3080 G is driven or pressed to a marked travel on the 380 mm seat, which sets the interference into the 400 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.