C3076-KM-AOH3076-G bearing: complete specifications & equivalents
The C3076-KM-AOH3076-G is a ISO 15 radial bearing sized 360 x 560 x 135 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 360 mm |
| Outer diameter D | 560 mm |
| Width B | 135 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 3000 kN |
| Basic static load rating C0 | 5200 kN |
| Fatigue load limit Pu | 380 kN |
| Reference speed (thermal) | 900 rpm |
| Limiting speed (mechanical) | 1200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 130000 g |
| Manufacturer designation | SKF C 3076 KM + AOH 3076 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 | 14.173 in |
|---|---|
| Outer diameter D | 22.047 in |
| Width B | 5.315 in |
| ISO bore code | 76 |
| Radial section height (D−d)/2 | 100 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) | 32 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 325 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3076 | 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 C3076-KM-AOH3076-G model number is decoded
Mounting C3076-KM-AOH3076-G at this size: warm the bearing, drive the withdrawal sleeve to its marked travel on the 360 mm seat and verify the residual radial clearance of the 380 mm CARB bearing before the unit cools — the marked travel is the setting record for the next overhaul. Housing side of C3076-KM-AOH3076-G is conventional: a 560 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 360 mm shaft.SKF C 3076 KM + AOH 3076 G denotes bearing C 3076 KM mounted on withdrawal sleeve AOH 3076 G: a 360 mm shaft seat, 560 mm housing bore, and the sleeve providing the interference a 380 mm tapered bore needs.On the SKF nameplate, C3076-KM-AOH3076-G reads as two catalogued components: the CARB bearing C 3076 KM with its 380 mm tapered (K) bore, and the withdrawal sleeve AOH 3076 G whose seat diameter matches that bore — the sleeve number encodes the bearing bore, never the 360 mm shaft size. Combined mass of the unit — bearing C 3076 KM plus sleeve AOH 3076 G — is about 130 kg; plan lifting gear and heating equipment around the assembly, not the bare bearing. Speed note: for C3076-KM-AOH3076-G the CARB table lists 900 r/min reference and 1,200 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 360 mm seat.
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
- 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
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
Selection pitfalls — read before you substitute
- Never set C3076-KM-AOH3076-G by locknut torque or "feel": the withdrawal sleeve travel defines the clearance of the 380 mm CARB bearing — measure residual radial clearance during mounting, in steps.
- Do not re-use a sleeve that shows taper scuffing: a scratched cone changes the travel-to-clearance relationship of the whole C3076-KM-AOH3076-G unit — replace the sleeve with the bearing.
- Protect the 360 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 C3076-KM-AOH3076-G.
- The 3000/5200 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 3076 KM + AOH 3076 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 C3076-KM-AOH3076-G?
The unit is CARB bearing C 3076 KM on withdrawal sleeve AOH 3076 G, fitting a 360 mm shaft (14.173 in), housing bore 560 mm, bearing width 135 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 3000 kN, C0 5200 kN, fatigue load limit Pu 380 kN, combined mass about 130.0 kg. Reference speed 900 r/min, limiting speed 1,200 r/min (bearing values).
Why does C3076-KM-AOH3076-G list a 360 mm shaft size when the bearing bore is 380 mm?
The sleeve takes up the difference: the withdrawal sleeve AOH 3076 G has a tapered outside that engages the bearing's 380 mm tapered bore and a cylindrical bore that seats on the 360 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3076-KM-AOH3076-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 3076 KM and the sleeve AOH 3076 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 C3076-KM-AOH3076-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 C3076-KM-AOH3076-G set at mounting?
By sleeve travel: the withdrawal sleeve AOH 3076 G is driven or pressed to a marked travel on the 360 mm seat, which sets the interference into the 380 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.