C2217-K-AHX317 bearing: complete specifications & equivalents
The C2217-K-AHX317 is a ISO 15 radial bearing sized 80 x 150 x 36 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 80 mm |
| Outer diameter D | 150 mm |
| Width B | 36 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 275 kN |
| Basic static load rating C0 | 320 kN |
| Fatigue load limit Pu | 35.5 kN |
| Reference speed (thermal) | 4000 rpm |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 3000 g |
| Manufacturer designation | SKF C 2217 K + AHX 317 |
| 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 | 3.15 in |
|---|---|
| Outer diameter D | 5.906 in |
| Width B | 1.417 in |
| ISO bore code | 17 |
| Radial section height (D−d)/2 | 35 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) | 10 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2217 | 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 C2217-K-AHX317 model number is decoded
Digit by digit, C2217-K-AHX317 = CARB bearing C 2217 K (85 mm bore, 150 mm OD, 36 mm width) + withdrawal sleeve AHX 317 for the 80 mm cylindrical shaft seat; cage and tolerance letters stay with the bearing half of the designation. The AHX 317 execution defines the fit on the 80 mm cylindrical seat by sleeve travel rather than locknut torque; the mounting procedure records that travel, because the running clearance of the CARB bearing is set by the same taper. Speed note: for C2217-K-AHX317 the CARB table lists 4,000 r/min reference and 5,600 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 80 mm seat. Record the sleeve travel at mounting of C2217-K-AHX317: the clearance set into the 85 mm bearing today is the reference for the next re-clearance check, and travel data catches seat wear on the 80 mm shaft over the years. Housing side of C2217-K-AHX317 is conventional: a 150 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 80 mm shaft.C2217-K-AHX317 is a complete SKF mounting unit for the largest CARB sizes: the toroidal roller bearing C 2217 K on withdrawal sleeve AHX 317, listed in SKF catalogue PUB BU/P1 17000 for a 80 mm shaft 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
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
- 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
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
Selection pitfalls — read before you substitute
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C2217-K-AHX317 and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Do not run C2217-K-AHX317 as a locating bearing: the CARB raceway is toroidal and the unit is designed to float axially; blocking it against a shoulder preloads the rollers and ends in thermal failure.
- Sleeve and bearing are a matched taper pair: never fit sleeve AHX 317 onto a different CARB bearing of the same bore size without verifying the execution letters — seat length and taper contact differ.
- The 275/320 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 2217 K + AHX 317 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 C2217-K-AHX317?
The unit is CARB bearing C 2217 K on withdrawal sleeve AHX 317, fitting a 80 mm shaft (3.15 in), housing bore 150 mm, bearing width 36 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 275 kN, C0 320 kN, fatigue load limit Pu 35.5 kN, combined mass about 3.0 kg. Reference speed 4,000 r/min, limiting speed 5,600 r/min (bearing values).
Why does C2217-K-AHX317 list a 80 mm shaft size when the bearing bore is 85 mm?
The sleeve takes up the difference: the withdrawal sleeve AHX 317 has a tapered outside that engages the bearing's 85 mm tapered bore and a cylindrical bore that seats on the 80 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C2217-K-AHX317 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 2217 K and the sleeve AHX 317 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 C2217-K-AHX317 as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C2217-K-AHX317 set at mounting?
By sleeve travel: the withdrawal sleeve AHX 317 is driven or pressed to a marked travel on the 80 mm seat, which sets the interference into the 85 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.