C2226 bearing: complete specifications & equivalents
The C2226 is a ISO 15 radial bearing sized 130 x 230 x 64 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 130 mm |
| Outer diameter D | 230 mm |
| Width B | 64 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 735 kN |
| Basic static load rating C0 | 930 kN |
| Fatigue load limit Pu | 91.5 kN |
| Reference speed (thermal) | 2800 rpm |
| Limiting speed (mechanical) | 3800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 11500 g |
| Manufacturer designation | C 2226 |
| 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 | 5.118 in |
|---|---|
| Outer diameter D | 9.055 in |
| Width B | 2.52 in |
| ISO bore code | 26 |
| Radial section height (D−d)/2 | 50 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) | 16 of 21 |
| Bore above smallest C2200-series size | 100 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2226-K | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 130×230×64 mm ISO 15 envelope and equivalent catalogue C/C0; C 2226 K is the 1:12 tapered-bore K steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| 22226 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (130×230×64 mm) SKF spherical roller bearing SKF 22226 E with ratings within 10 % — not a drop-in substitute: SKF 22226 E locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
| 22226-EK | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (130×230×64 mm) SKF spherical roller bearing SKF 22226 EK with ratings within 10 % — not a drop-in substitute: SKF 22226 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 C2226 model number is decoded
C 2226 is the dimension series 22 CARB toroidal roller bearings member of the CARB range: 130 mm bore, 230 mm OD, 64 mm width, with the asymmetrical-looking toroidal roller set that defines the CARB principle. In C 2226 the 22 dimension series fixes the 230 mm OD and 64 mm width around the 130 mm bore (code 26 × 5); the suffix the bare number then selects the cylindrical bore for direct shaft fitting, pressed steel cage. CARB bearings locate neither radially nor axially: the inner ring can walk axially inside the outer ring over the catalogue-listed axial-displacement range (s), so shaft thermal growth disappears as thrust rather than preloading the 130 mm seat. Selection arithmetic: C 735 kN against C0 930 kN gives a C0/C ratio of 1.27, and the 91.5 kN fatigue load limit Pu sets the contamination-adjusted life floor. Seat tolerances follow the ISO 15 recommendation for the normal-load position — the 230 mm outer ring typically takes a loose housing fit to preserve float, and the rings must be supported across their full faces.
Typical equipment & failure modes
Common applications
- vibrating screen exciters fitted with the VE240 tolerance execution
- 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
Known failure patterns
- raceway spalling once the catalogue L10 life is exceeded or after sustained overload
- thermal preloading when a shaft is located at both ends and growth has nowhere to go
- PA66 cage (TN9) softening when the sustained temperature passes the polymer limit
- rolling-contact fatigue spalling after the catalogue L10 life is exhausted
- grease churning and overheating when a high-speed thrust position is over-packed
Selection pitfalls — read before you substitute
- At 130 mm bore, shaft expansion is already measurable: calculate the required float inside the 64 mm wide bearing rather than assuming the free-end clearance is "enough" at operating temperature.
- Do not block the axial displacement in the drawing: housing covers, labyrinth rings and snap rings must leave the catalogue float (s) free, or the bearing silently becomes a poorly located fixed bearing.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 2226 must float; the two are designed to be used as a pair.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 130 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Reference and limiting speeds are different limits: the 2,800 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.
- The 735/930 kN ratings and 11500 g mass are SKF catalogue values transcribed from ch. 10.1 of PUB BU/P1 17000 (PDF table page 862); 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
How is C 2226 mounted?
Slide or heat (max 120 °C) the bearing onto the 130 mm seat, give the outer ring a loose housing fit, leave the float travel unobstructed, and never press through the 64 mm roller set.
What are the dimensions and ratings of the C 2226?
A C 2226 measures 130 mm bore × 230 mm outside diameter × 64 mm width (5.118 × 9.055 × 2.52 in). From SKF catalogue PUB BU/P1 17000: dynamic C 735 kN, static C0 930 kN, fatigue limit Pu 91.5 kN, reference speed 2,800 r/min, limiting speed 3,800 r/min, mass about 11500 g.
Can a CARB bearing like C 2226 locate the shaft axially?
No — that is the defining feature. C 2226 deliberately allows the inner ring to float axially inside the outer ring while the toroidal rollers self-align. It must be paired with a separate locating bearing (spherical, tapered or angular contact) that takes 100 % of the thrust.
How is the C 2226 designation read?
C = CARB toroidal family; 22 = dimension series; 26 = 130 mm bore (code 26 × 5); suffix the bare number selects cylindrical bore for direct shaft fitting, pressed steel cage. K is a 1:12 tapered bore for an adapter sleeve, K30 a 1:30 bore for a withdrawal sleeve.
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.