C3064-KM-AOH3064-G bearing: complete specifications & equivalents
The C3064-KM-AOH3064-G is a ISO 15 radial bearing sized 300 x 480 x 121 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 300 mm |
| Outer diameter D | 480 mm |
| Width B | 121 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 2280 kN |
| Basic static load rating C0 | 4000 kN |
| Fatigue load limit Pu | 305 kN |
| Reference speed (thermal) | 1000 rpm |
| Limiting speed (mechanical) | 1400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 93000 g |
| Manufacturer designation | SKF C 3064 KM + AOH 3064 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 | 11.811 in |
|---|---|
| Outer diameter D | 18.898 in |
| Width B | 4.764 in |
| ISO bore code | 64 |
| Radial section height (D−d)/2 | 90 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) | 29 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 265 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3064 | 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 C3064-KM-AOH3064-G model number is decoded
Numbering logic: the bearing half C 3064 KM follows the CARB works numbering (type C, dimension series, 320 mm bore), while AOH 3064 G identifies the sleeve execution for that bore; the combo C3064-KM-AOH3064-G exists in the catalogue so that shaft (300 mm), housing (480 mm) and both components are specified with one order number. Combined mass of the unit — bearing C 3064 KM plus sleeve AOH 3064 G — is about 93 kg; plan lifting gear and heating equipment around the assembly, not the bare bearing. Fatigue floor: Pu 305 kN governs the adjusted-life calculation at contaminated or partial-film conditions, exactly as for the bare C 3064 KM bearing — the sleeve execution does not change the L10 arithmetic. Dismounting uses the withdrawal thread on AOH 3064 G: pull the sleeve back along its cone with the dedicated withdrawal nut or hydraulic tool — the CARB bearing and sleeve come off the 300 mm seat as one piece and the seat stays undamaged. Spare-parts note: order C3064-KM-AOH3064-G as the unit; a bare C 3064 KM plus a separately sourced sleeve risks taper mismatch — the catalogue pairing is the guarantee that seat and bore were ground for each other.For a 300 mm shaft SKF lists C3064-KM-AOH3064-G as the complete unit: CARB bearing C 3064 KM plus withdrawal sleeve AOH 3064 G, one catalogue entry covering both components.
Typical equipment & failure modes
Common applications
- winder and reel drums in paper and steel strip plants
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
- continuous-caster guide rolls and slab-caster segments under heat growth
- continuous-caster guide rolls and slab-caster segments under heat growth
Known failure patterns
- 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
- misalignment edge loading when the housing bore is out of square with the shaft seat
- misalignment edge loading when the housing bore is out of square with the shaft seat
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
Selection pitfalls — read before you substitute
- Keep the pair complete in stores: storing bearing C 3064 KM and sleeve AOH 3064 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 C3064-KM-AOH3064-G unit — replace the sleeve with the bearing.
- Protect the 300 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 C3064-KM-AOH3064-G.
- The 2280/4000 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 3064 KM + AOH 3064 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 C3064-KM-AOH3064-G?
The unit is CARB bearing C 3064 KM on withdrawal sleeve AOH 3064 G, fitting a 300 mm shaft (11.811 in), housing bore 480 mm, bearing width 121 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 2280 kN, C0 4000 kN, fatigue load limit Pu 305 kN, combined mass about 93.0 kg. Reference speed 1,000 r/min, limiting speed 1,400 r/min (bearing values).
Why does C3064-KM-AOH3064-G list a 300 mm shaft size when the bearing bore is 320 mm?
The sleeve takes up the difference: the withdrawal sleeve AOH 3064 G has a tapered outside that engages the bearing's 320 mm tapered bore and a cylindrical bore that seats on the 300 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3064-KM-AOH3064-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 3064 KM and the sleeve AOH 3064 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 C3064-KM-AOH3064-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 C3064-KM-AOH3064-G set at mounting?
By sleeve travel: the withdrawal sleeve AOH 3064 G is driven or pressed to a marked travel on the 300 mm seat, which sets the interference into the 320 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.