C2319-K-AHX2319 bearing: complete specifications & equivalents
The C2319-K-AHX2319 is a ISO 15 radial bearing sized 90 x 200 x 67 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 90 mm |
| Outer diameter D | 200 mm |
| Width B | 67 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 610 kN |
| Basic static load rating C0 | 695 kN |
| Fatigue load limit Pu | 73.5 kN |
| Reference speed (thermal) | 2800 rpm |
| Limiting speed (mechanical) | 4000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 11000 g |
| Manufacturer designation | SKF C 2319 K + AHX 2319 |
| 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 | 3.543 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 2.638 in |
| ISO bore code | 19 |
| Radial section height (D−d)/2 | 55 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) | 12 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 55 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2319 | 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 C2319-K-AHX2319 model number is decoded
For a 90 mm shaft SKF lists C2319-K-AHX2319 as the complete unit: CARB bearing C 2319 K plus withdrawal sleeve AHX 2319, one catalogue entry covering both components.On the SKF nameplate, C2319-K-AHX2319 reads as two catalogued components: the CARB bearing C 2319 K with its 95 mm tapered (K) bore, and the withdrawal sleeve AHX 2319 whose seat diameter matches that bore — the sleeve number encodes the bearing bore, never the 90 mm shaft size. Withdrawal sleeve AHX 2319: at this size the sleeve is pulled onto the 90 mm seat (hydraulic assistance is standard) and its taper sets the interference into the 95 mm bearing bore — dismounting uses the sleeve's withdrawal thread, protecting shaft and bearing raceways. The C0/C balance of about 1.14 shows the non-locating CARB character: heavy radial capacity with tolerance of misalignment and axial float — the withdrawal sleeve adds the plain-shaft mounting ability, not thrust capability. Dismounting uses the withdrawal thread on AHX 2319: pull the sleeve back along its cone with the dedicated withdrawal nut or hydraulic tool — the CARB bearing and sleeve come off the 90 mm seat as one piece and the seat stays undamaged. The unit's temp range follows the bearing: -40 to +120 °C continuous for the standard execution; cage and sleeve execution letters on C 2319 K and AHX 2319 must be checked against the application temperature before substitution.
Typical equipment & failure modes
Common applications
- continuous-caster guide rolls and slab-caster segments under heat growth
- vibrating screen exciters fitted with the VE240 tolerance execution
- long fan and kiln main shafts where the free end must float without thrust load
- 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
- misalignment edge loading when the housing bore is out of square with the shaft seat
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- fretting corrosion at the shaft-sleeve interface under vibration with an undersized 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
- Sleeve and bearing are a matched taper pair: never fit sleeve AHX 2319 onto a different CARB bearing of the same bore size without verifying the execution letters — seat length and taper contact differ.
- Keep the pair complete in stores: storing bearing C 2319 K and sleeve AHX 2319 on different shelves is how taper-mismatch accidents start — store the unit as received under one part number.
- Never set C2319-K-AHX2319 by locknut torque or "feel": the withdrawal sleeve travel defines the clearance of the 95 mm CARB bearing — measure residual radial clearance during mounting, in steps.
- The 610/695 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 2319 K + AHX 2319 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 C2319-K-AHX2319?
The unit is CARB bearing C 2319 K on withdrawal sleeve AHX 2319, fitting a 90 mm shaft (3.543 in), housing bore 200 mm, bearing width 67 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 610 kN, C0 695 kN, fatigue load limit Pu 73.5 kN, combined mass about 11.0 kg. Reference speed 2,800 r/min, limiting speed 4,000 r/min (bearing values).
Why does C2319-K-AHX2319 list a 90 mm shaft size when the bearing bore is 95 mm?
The sleeve takes up the difference: the withdrawal sleeve AHX 2319 has a tapered outside that engages the bearing's 95 mm tapered bore and a cylindrical bore that seats on the 90 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C2319-K-AHX2319 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 2319 K and the sleeve AHX 2319 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 C2319-K-AHX2319 as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C2319-K-AHX2319 set at mounting?
By sleeve travel: the withdrawal sleeve AHX 2319 is driven or pressed to a marked travel on the 90 mm seat, which sets the interference into the 95 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.