C2216-K-AH316 bearing: complete specifications & equivalents
The C2216-K-AH316 is a ISO 15 radial bearing sized 75 x 140 x 33 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 140 mm |
| Width B | 33 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 220 kN |
| Basic static load rating C0 | 250 kN |
| Fatigue load limit Pu | 28.5 kN |
| Reference speed (thermal) | 4300 rpm |
| Limiting speed (mechanical) | 6000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2350 g |
| Manufacturer designation | SKF C 2216 K + AH 316 |
| 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 | 2.953 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.299 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 32.5 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) | 9 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 40 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2216 | 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 C2216-K-AH316 model number is decoded
Spare-parts note: order C2216-K-AH316 as the unit; a bare C 2216 K plus a separately sourced sleeve risks taper mismatch — the catalogue pairing is the guarantee that seat and bore were ground for each other.In SKF catalogue PUB BU/P1 17000, C2216-K-AH316 appears as bearing C 2216 K + withdrawal sleeve AH 316 — the large-size execution of the CARB non-locating principle, delivered as one assembly weighing 2 kg.Digit by digit, C2216-K-AH316 = CARB bearing C 2216 K (80 mm bore, 140 mm OD, 33 mm width) + withdrawal sleeve AH 316 for the 75 mm cylindrical shaft seat; cage and tolerance letters stay with the bearing half of the designation. Sleeve discipline for AH 316: the taper is matched to the bearing bore, the thread end is for withdrawal tooling; never interchange sleeves between bearings of the same bore size without checking the execution letters — seat length and withdrawal thread differ by execution. Speed note: for C2216-K-AH316 the CARB table lists 4,300 r/min reference and 6,000 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 75 mm seat. Dismounting uses the withdrawal thread on AH 316: pull the sleeve back along its cone with the dedicated withdrawal nut or hydraulic tool — the CARB bearing and sleeve come off the 75 mm seat as one piece and the seat stays undamaged.
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
- continuous-caster guide rolls and slab-caster segments under heat growth
Known failure patterns
- 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
- 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
- misalignment edge loading when the housing bore is out of square with the shaft seat
Selection pitfalls — read before you substitute
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C2216-K-AH316 and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Keep the pair complete in stores: storing bearing C 2216 K and sleeve AH 316 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 C2216-K-AH316 unit — replace the sleeve with the bearing.
- The 220/250 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 2216 K + AH 316 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 C2216-K-AH316?
The unit is CARB bearing C 2216 K on withdrawal sleeve AH 316, fitting a 75 mm shaft (2.953 in), housing bore 140 mm, bearing width 33 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 220 kN, C0 250 kN, fatigue load limit Pu 28.5 kN, combined mass about 2.4 kg. Reference speed 4,300 r/min, limiting speed 6,000 r/min (bearing values).
Why does C2216-K-AH316 list a 75 mm shaft size when the bearing bore is 80 mm?
The sleeve takes up the difference: the withdrawal sleeve AH 316 has a tapered outside that engages the bearing's 80 mm tapered bore and a cylindrical bore that seats on the 75 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C2216-K-AH316 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 2216 K and the sleeve AH 316 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 C2216-K-AH316 as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C2216-K-AH316 set at mounting?
By sleeve travel: the withdrawal sleeve AH 316 is driven or pressed to a marked travel on the 75 mm seat, which sets the interference into the 80 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.