22326 bearing: complete specifications & equivalents
The 22326 is a ISO 15 radial bearing sized 130 x 280 x 93 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 | 280 mm |
| Width B | 93 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1176 kN |
| Basic static load rating C0 | 1320 kN |
| Fatigue load limit Pu | 114 kN |
| Reference speed (thermal) | 1800 rpm |
| Limiting speed (mechanical) | 2400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 29000 g |
| Manufacturer designation | SKF 22326 CC/W33 |
| 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 & 22300-series range
| Bore d | 5.118 in |
|---|---|
| Outer diameter D | 11.024 in |
| Width B | 3.661 in |
| ISO bore code | 26 |
| Radial section height (D−d)/2 | 75 mm |
| Smallest bore in 22300-series | 40 mm |
| Largest outer diameter in 22300-series | 620 mm |
| Width range across 22300-series | 33–185 mm |
| Bore position in 22300-series (smallest first) | 16 of 28 |
| Bore above smallest 22300-series size | 90 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22326-CCK-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) execution on AHX2326 withdrawal sleeve; same ISO 15 envelope, separate order number. |
| C2326-K-VE240 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF CARB toroidal bearing C 2326 K/VE240 shares the 130×280×93 mm envelope but catalogue C/C0 differ (980/1220 kN vs 1176/1320 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 22326 model number is decoded
In SKF catalogue PUB BU/P1 17000, 22326 appears as 22326 CC/W33: an open, double-row spherical roller bearing, self-aligning by virtue of the sphered outer raceway, sized 130×280×93 mm to the ISO 15 boundary plan. Numbering ties the bearing to its envelope: 22326 means spherical-roller type, dimension series 23, 130 mm bore — which is why the 280×93 mm outline swaps dimensionally with other ISO 15 bearings of the same code. The suffix chain reads CC (two pressed-steel cages with a floating guide ring between the roller rows) plus W33 (annular groove and three lubrication holes in the outer ring for relubrication); CCK/W33 is the 1:12 tapered-bore counterpart. Selection arithmetic: the C0/C ratio is about 1.12 (static 1320 kN against dynamic 1176 kN), typical of a spherical roller sized for heavy combined loads, and the 114 kN fatigue load limit Pu is the equivalent-load floor used in the life calculation. The cylindrical-bore execution here seats directly on the shaft journal; if the application calls for an adapter sleeve, order the tapered-bore 22326 CCK/W33 variant instead and measure the drive-up or clearance reduction, not the nut torque.
Typical equipment & failure modes
Common applications
- SAG and ball-mill drive shafts
- large mining crusher main shafts
- wind-turbine main shaft support
- heavy rolling-mill work-roll chocks
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
- stamped-steel cage fatigue after long service in high-vibration screening duty without the VA405 execution
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- hard-particle indentation of the raceway in unfiltered oil or contaminated grease systems
Selection pitfalls — read before you substitute
- At 130 mm bore the ring mass makes cocking during mounting a real risk; guide the bearing square, confirm seat contact around the full circumference, and re-check the self-aligning swing after the housing cap is torqued down.
- The 22300-series series at 130 mm bore (280×93 mm) is the heavy wide-section choice — highest capacity, lowest speed limit; do not substitute a 222 or 230 series in the same bore without re-checking both life and the 2,400 r/min ceiling.
- 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 22326 pits long before its L10 life.
- The self-aligning feature is not a license to ignore alignment: beyond ≈ 0.5–2.5° (series-dependent) the edge loading eats the fatigue margin, and seal drag grows as the rings tilt.
- The 1176/1320 kN ratings are SKF catalogue values for this exact execution (22326 CC/W33); 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 22326 (cylindrical bore as listed, tapered-bore 22326 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 22326 CC/W33 designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 22326?
The 22326 CC/W33 is a double-row spherical roller bearing with 130 mm bore, 280 mm outer diameter and 93 mm width (5.118 × 11.024 × 3.661 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1176 kN, C0 1320 kN, fatigue load limit Pu 114 kN, reference speed 1,800 r/min, limiting speed 2,400 r/min, mass about 29000 g. It is an open, self-aligning bearing with two pressed-steel cages with a floating guide ring.
How does the 22326 bore code work?
The last two digits of 22326 are bore code 26, so 26 × 5 = 130 mm bore. The 280 mm OD and 93 mm width come from the ISO 15 dimension-series plan (dimension series 23 (heavy OD, wide)), shared with other spherical roller bearings of the same code.
What does the CC/W33 suffix mean on 22326?
CC denotes two pressed-steel cages with a floating guide ring between the roller rows, and W33 adds an annular groove plus three lubrication holes in the outer ring for relubrication. CCK/W33 is the 1:12 tapered-bore counterpart.
Can 22326 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 22326K 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 22326 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.