C30-600-KM-AOHX30-600 bearing: complete specifications & equivalents
The C30-600-KM-AOHX30-600 is a ISO 15 radial bearing sized 570 x 870 x 200 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 570 mm |
| Outer diameter D | 870 mm |
| Width B | 200 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 6300 kN |
| Basic static load rating C0 | 12200 kN |
| Fatigue load limit Pu | 780 kN |
| Reference speed (thermal) | 500 rpm |
| Limiting speed (mechanical) | 700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 460000 g |
| Manufacturer designation | SKF C 30/600 KM + AOHX 30/600 |
| 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 | 22.441 in |
|---|---|
| Outer diameter D | 34.252 in |
| Width B | 7.874 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 150 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) | 41 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 535 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C30 | 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 C30-600-KM-AOHX30-600 model number is decoded
Mounting C30-600-KM-AOHX30-600 at this size: warm the bearing, drive the withdrawal sleeve to its marked travel on the 570 mm seat and verify the residual radial clearance of the 600 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 30/600 KM and AOHX 30/600 must be checked against the application temperature before substitution.In SKF catalogue PUB BU/P1 17000, C30-600-KM-AOHX30-600 appears as bearing C 30/600 KM + withdrawal sleeve AOHX 30/600 — the large-size execution of the CARB non-locating principle, delivered as one assembly weighing 460 kg.On the SKF nameplate, C30-600-KM-AOHX30-600 reads as two catalogued components: the CARB bearing C 30/600 KM with its 600 mm tapered (K) bore, and the withdrawal sleeve AOHX 30/600 whose seat diameter matches that bore — the sleeve number encodes the bearing bore, never the 570 mm shaft size. Withdrawal sleeve AOHX 30/600: at this size the sleeve is pulled onto the 570 mm seat (hydraulic assistance is standard) and its taper sets the interference into the 600 mm bearing bore — dismounting uses the sleeve's withdrawal thread, protecting shaft and bearing raceways. Dividing C 6300 kN by the 600 mm bore gives 10.50 kN per millimetre of journal — compare this density against neighbouring CARB sizes when the 570 mm seat is fixed and the life requirement is not.
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
- heavy industrial gearbox layshafts used as the non-locating position
Known failure patterns
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- 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
- 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
Selection pitfalls — read before you substitute
- Keep the pair complete in stores: storing bearing C 30/600 KM and sleeve AOHX 30/600 on different shelves is how taper-mismatch accidents start — store the unit as received under one part number.
- Keep the pair complete in stores: storing bearing C 30/600 KM and sleeve AOHX 30/600 on different shelves is how taper-mismatch accidents start — store the unit as received under one part number.
- Protect the 570 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 C30-600-KM-AOHX30-600.
- The 6300/12200 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 30/600 KM + AOHX 30/600 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 C30-600-KM-AOHX30-600?
The unit is CARB bearing C 30/600 KM on withdrawal sleeve AOHX 30/600, fitting a 570 mm shaft (22.441 in), housing bore 870 mm, bearing width 200 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 6300 kN, C0 12200 kN, fatigue load limit Pu 780 kN, combined mass about 460.0 kg. Reference speed 500 r/min, limiting speed 700 r/min (bearing values).
Why does C30-600-KM-AOHX30-600 list a 570 mm shaft size when the bearing bore is 600 mm?
The sleeve takes up the difference: the withdrawal sleeve AOHX 30/600 has a tapered outside that engages the bearing's 600 mm tapered bore and a cylindrical bore that seats on the 570 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C30-600-KM-AOHX30-600 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 30/600 KM and the sleeve AOHX 30/600 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 C30-600-KM-AOHX30-600 as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C30-600-KM-AOHX30-600 set at mounting?
By sleeve travel: the withdrawal sleeve AOHX 30/600 is driven or pressed to a marked travel on the 570 mm seat, which sets the interference into the 600 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.