22206 bearing: complete specifications & equivalents
The 22206 is a ISO 15 radial bearing sized 30 x 62 x 20 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 30 mm |
| Outer diameter D | 62 mm |
| Width B | 20 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 66.1 kN |
| Basic static load rating C0 | 60 kN |
| Fatigue load limit Pu | 6.4 kN |
| Reference speed (thermal) | 10000 rpm |
| Limiting speed (mechanical) | 14000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 290 g |
| Manufacturer designation | SKF 22206 E |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical 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 & 22200-series range
| Bore d | 1.181 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 0.787 in |
| ISO bore code | 06 |
| Radial section height (D−d)/2 | 16 mm |
| Smallest bore in 22200-series | 25 mm |
| Largest outer diameter in 22200-series | 580 mm |
| Width range across 22200-series | 18–150 mm |
| Bore position in 22200-series (smallest first) | 2 of 32 |
| Bore above smallest 22200-series size | 5 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22206-EK | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) execution on H306 adapter sleeve; same ISO 15 envelope, separate order number. |
| C2206-TN9 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF CARB toroidal bearing C 2206 TN9 shares the 30×62×20 mm envelope with ratings within 10 %; it self-aligns but floats axially and cannot locate the shaft — locating/non-locating pair, not a substitute. |
| C2206-KTN9 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF CARB toroidal bearing C 2206 KTN9 shares the 30×62×20 mm envelope with ratings within 10 %; it self-aligns but floats axially and cannot locate the shaft — locating/non-locating pair, not a substitute. |
| C2206-V | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF CARB toroidal bearing C 2206 V shares the 30×62×20 mm envelope but catalogue C/C0 differ (76.5/71 kN vs 66.1/60 kN); it floats axially and cannot locate the shaft — pair, never swap one-for-one. |
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 22206 model number is decoded
The 22206 E is a 30×62×20 mm spherical roller bearing — the dimension series 22 (medium OD, wide) entry for a 30 mm shaft, with two rows of symmetrical barrel rollers for combined radial and axial load. The code breaks down as type digit 2 (double-row spherical roller), dimension series 22 (dimension series 22 (medium OD, wide)), and bore code 06 = 30 mm; dimensions 30×62×20 mm therefore match the ISO 15 envelope. In SKF suffix language, E marks the optimized high-capacity design and CC/W33 the pressed-steel-cage execution with relubrication groove; both are open bearings — the sealed variant carries the 2CS5 suffix and the vibrating-screen execution VA405. Selection arithmetic: the C0/C ratio is about 0.91 (static 60 kN against dynamic 66.1 kN), typical of a spherical roller sized for heavy combined loads, and the 6.4 kN fatigue load limit Pu is the equivalent-load floor used in the life calculation. A 30 mm rotating inner ring usually runs k5 on the shaft with H7 in the housing; for vibrating-screen duty the outer ring is instead held tight and the shaft seat loosened — follow the screen builder's fit schedule.
Typical equipment & failure modes
Common applications
- vibrating screen and scalper main shafts
- conveyor drive and bend pulleys
- industrial gearbox output shafts
- centrifugal pump and fan shafts
Known failure patterns
- raceway fatigue spalling of the sphered outer raceway after extended service above the catalogue L10 rating
- inner-ring raceway spalling from edge loading when misalignment exceeds the self-aligning recovery range
- cage pocket wear or fracture from roller skew at insufficient minimum load or rapid acceleration
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- seal-lip wear and grease purge loss when an open bearing is run without functioning housing seals
Selection pitfalls — read before you substitute
- On this 30 mm bore, an interference inner-ring fit consumes a large share of the CN clearance; specify C3 when the inner ring rotates hot, and verify residual clearance after mounting rather than trusting the catalogue clearance class.
- The 22200-series series at 30 mm bore (62×20 mm) is the general-purpose spherical roller envelope; stepping up to 223 adds capacity and width, stepping to 230 trims the OD — neither is interchangeable without re-checking shoulders and speed.
- Catalogue reference speed and limiting speed are different limits: the 10,000 r/min reference is a thermal criterion under load, while the 14,000 r/min limiting value is the mechanical ceiling — observe both.
- Open spherical roller bearings rely on the housing seals; in screening or crusher duty a failed seal lets grit into the sphered raceway and the 22206 pits long before its L10 life.
- The 66.1/60 kN ratings are SKF catalogue values for this exact execution (22206 E); SKF can revise internal geometry without changing the order number, so keep the catalogue version (SKF catalogue PUB BU/P1 17000) with the specification and re-verify for critical drives.
- SKF lists several executions of 22206 (cylindrical bore as listed, tapered-bore 22206 EK variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 22206 E designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 22206?
The 22206 E is a double-row spherical roller bearing with 30 mm bore, 62 mm outer diameter and 20 mm width (1.181 × 2.441 × 0.787 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 66.1 kN, C0 60 kN, fatigue load limit Pu 6.4 kN, reference speed 10,000 r/min, limiting speed 14,000 r/min, mass about 290 g. It is an open, self-aligning bearing with a stamped window-type steel cage.
How does the 22206 bore code work?
The last two digits of 22206 are bore code 06, so 06 × 5 = 30 mm bore. The 62 mm OD and 20 mm width come from the ISO 15 dimension-series plan (dimension series 22 (medium OD, wide)), shared with other spherical roller bearings of the same code.
What does the E suffix mean on 22206?
E is the SKF optimized internal design with larger rollers and a stamped window-type steel cage for higher load ratings. The EK variant is the same bearing with a 1:12 tapered bore for adapter sleeves.
Can 22206 accommodate misalignment and axial load?
Yes on both counts. The sphered outer raceway lets the bearing self-align ≈ 0.5–2.5° depending on series, absorbing shaft deflection and housing-seat errors. The two barrel-roller rows also carry bidirectional axial load in addition to heavy radial load — this is the key difference from cylindrical roller bearings, which take no axial load.
When should the tapered-bore 22206K variant be used instead?
Choose the K (1:12 tapered bore) variant when the bearing must seat on an adapter or withdrawal sleeve — typical for long shafts, frequent dismounting, or stepped shafts where machining a precision journal is impractical. Sleeve mounting requires measuring clearance reduction or axial drive-up, not nut torque. The cylindrical-bore 22206 listed here seats directly on a machined journal.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings on 2026-09-26. Read our editorial & correction policy.