C2222-K bearing: complete specifications & equivalents
The C2222-K is a ISO 15 radial bearing sized 110 x 200 x 53 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 110 mm |
| Outer diameter D | 200 mm |
| Width B | 53 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 530 kN |
| Basic static load rating C0 | 620 kN |
| Fatigue load limit Pu | 64 kN |
| Reference speed (thermal) | 3200 rpm |
| Limiting speed (mechanical) | 4300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7000 g |
| Manufacturer designation | C 2222 K |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings); 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 & C2200-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 2.087 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 45 mm |
| Smallest bore in C2200-series | 30 mm |
| Largest outer diameter in C2200-series | 400 mm |
| Width range across C2200-series | 20–108 mm |
| Bore position in C2200-series (smallest first) | 15 of 21 |
| Bore above smallest C2200-series size | 80 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2222 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 110×200×53 mm ISO 15 envelope and equivalent catalogue C/C0; C 2222 is the cylindrical-bore steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| 22222 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (110×200×53 mm) SKF spherical roller bearing SKF 22222 E with ratings within 10 % — not a drop-in substitute: SKF 22222 E locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
| 22222-EK | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (110×200×53 mm) SKF spherical roller bearing SKF 22222 EK with ratings within 10 % — not a drop-in substitute: SKF 22222 EK locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
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 C2222-K model number is decoded
C 2222 K belongs to the CARB family — compact aligning roller bearings: envelope 110×200×53 mm, radial rating 530/620 kN C/C0, and no axial-locating function by design. SKF builds the CARB order number from size plus execution: the bare number C 2222 is the steel-caged cylindrical-bore bearing, K (or K30) makes the bore tapered for sleeve mounting, and the cage/seal letters follow — here K. The K suffix gives a 1:12 tapered 110 mm bore, mounted on an adapter (H) sleeve so the bearing can be driven up to the specified clearance. The same size is listed in both bore executions, and the boundary dimensions 110×200×53 mm are identical — only the mounting method changes. Speed planning separates the 3,200 r/min thermal reference from the 4,300 r/min mechanical limiting speed. The full-complement V executions carry more load but list no thermal reference speed; the steel-caged executions run faster and cooler at light load. Mounting: mount on the adapter (H) sleeve matched to the 1:12 tapered bore, drive up to the catalogue reduction and lock the nut; never press through the 53 mm roller set, and leave the free-end housing shoulder clear so axial float is unrestricted.
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
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
Known failure patterns
- roller-end and flange smearing after lubricant starvation at the long roller contacts
- roller skew and cage damage after the bearing is clamped solid between shaft and housing shoulders
- brass cage pocket wear under marginal lubrication in the large-bore M/MB executions
- rolling-contact fatigue spalling after the catalogue L10 life is exhausted
- abrasive paste forming as dust bypasses the housing seals into the open washer set
Selection pitfalls — read before you substitute
- At 110 mm bore, shaft expansion is already measurable: calculate the required float inside the 53 mm wide bearing rather than assuming the free-end clearance is "enough" at operating temperature.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 110 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Reference and limiting speeds are different limits: the 3,200 r/min reference speed is the thermal criterion under load, the limiting value is the mechanical ceiling; observe the reference under load unless the arrangement calculation says otherwise.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 2222 K must float; the two are designed to be used as a pair.
- Never use C 2222 K as the locating bearing: it carries no axial load by design — the arrangement needs a separate locating spherical, tapered or angular bearing facing the thrust.
- The 530/620 kN ratings and 7000 g mass are SKF catalogue values transcribed from ch. 10.1 of PUB BU/P1 17000 (PDF table page 860); mounting data — axial displacement (s) and seating details — appears in the running text because the structured record carries the boundary envelope only.
Frequently asked questions
Is the C 2222 K sealed?
No, it is an open execution relying on the housing seals; relubrication follows the groove/hole features of the size.
What fails first on a misapplied CARB bearing?
Blocking the designed axial float — clamping the free end or locating both shaft ends — turns thermal growth into edge loading and spalls the toroidal raceways. Cage damage and ordinary fatigue follow overload or dry running.
Which dimensions does the C 2222 K have?
A C 2222 K measures 110 mm bore × 200 mm outside diameter × 53 mm width (4.331 × 7.874 × 2.087 in). From SKF catalogue PUB BU/P1 17000: dynamic C 530 kN, static C0 620 kN, fatigue limit Pu 64 kN, reference speed 3,200 r/min, limiting speed 4,300 r/min, mass about 7000 g.
What does C 2222 K mean in SKF part numbering?
C marks CARB; 22 the dimension series; the size code gives 110 mm bore; K is the execution (tapered 1:12 bore for adapter (H) sleeve mounting, pressed steel cage). The envelope follows ISO 15 and matches spherical roller bearing outlines, but the functions differ.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings on 2026-09-27. Read our editorial & correction policy.