C3036-K-AH3036 bearing: complete specifications & equivalents
The C3036-K-AH3036 is a ISO 15 radial bearing sized 170 x 280 x 74 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 170 mm |
| Outer diameter D | 280 mm |
| Width B | 74 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 880 kN |
| Basic static load rating C0 | 1340 kN |
| Fatigue load limit Pu | 122 kN |
| Reference speed (thermal) | 2000 rpm |
| Limiting speed (mechanical) | 2600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 19000 g |
| Manufacturer designation | SKF C 3036 K + AH 3036 |
| 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 | 6.693 in |
|---|---|
| Outer diameter D | 11.024 in |
| Width B | 2.913 in |
| ISO bore code | 36 |
| 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) | 21 of 49 |
| Bore above smallest carb-withdrawal-sleeve size | 135 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3036 | 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 C3036-K-AH3036 model number is decoded
Fatigue floor: Pu 122 kN governs the adjusted-life calculation at contaminated or partial-film conditions, exactly as for the bare C 3036 K bearing — the sleeve execution does not change the L10 arithmetic. Dismounting uses the withdrawal thread on AH 3036: pull the sleeve back along its cone with the dedicated withdrawal nut or hydraulic tool — the CARB bearing and sleeve come off the 170 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 3036 K and AH 3036 must be checked against the application temperature before substitution.In SKF catalogue PUB BU/P1 17000, C3036-K-AH3036 appears as bearing C 3036 K + withdrawal sleeve AH 3036 — the large-size execution of the CARB non-locating principle, delivered as one assembly weighing 19 kg.Reading the designation: C 3036 K is the CARB toroidal roller bearing itself — self-aligning, designed as the non-locating bearing that lets the shaft float axially — and the withdrawal sleeve AH 3036 carries the tapered bore seat on a 170 mm cylindrical shaft. The suffix letters on the bearing fix cage and tolerance execution; the sleeve number is keyed to the bearing bore. The AH 3036 execution defines the fit on the 170 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.
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
- winder and reel drums in paper and steel strip plants
Known failure patterns
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
Selection pitfalls — read before you substitute
- Do not run C3036-K-AH3036 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.
- Do not run C3036-K-AH3036 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.
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3036-K-AH3036 and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- The 880/1340 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 3036 K + AH 3036 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 C3036-K-AH3036?
The unit is CARB bearing C 3036 K on withdrawal sleeve AH 3036, fitting a 170 mm shaft (6.693 in), housing bore 280 mm, bearing width 74 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 880 kN, C0 1340 kN, fatigue load limit Pu 122 kN, combined mass about 19.0 kg. Reference speed 2,000 r/min, limiting speed 2,600 r/min (bearing values).
Why does C3036-K-AH3036 list a 170 mm shaft size when the bearing bore is 180 mm?
The sleeve takes up the difference: the withdrawal sleeve AH 3036 has a tapered outside that engages the bearing's 180 mm tapered bore and a cylindrical bore that seats on the 170 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3036-K-AH3036 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 3036 K and the sleeve AH 3036 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 C3036-K-AH3036 as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C3036-K-AH3036 set at mounting?
By sleeve travel: the withdrawal sleeve AH 3036 is driven or pressed to a marked travel on the 170 mm seat, which sets the interference into the 180 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.