23222-CCK-W33 bearing: complete specifications & equivalents
The 23222-CCK-W33 is a ISO 15 radial bearing sized 110 x 200 x 69.8 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 | 69.8 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 626 kN |
| Basic static load rating C0 | 765 kN |
| Fatigue load limit Pu | 76.5 kN |
| Reference speed (thermal) | 2200 rpm |
| Limiting speed (mechanical) | 3200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 12500 g |
| Manufacturer designation | SKF 23222 CCK/W33 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions); 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 & 23200-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 2.748 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 45 mm |
| Smallest bore in 23200-series | 90 mm |
| Largest outer diameter in 23200-series | 870 mm |
| Width range across 23200-series | 52.4–310 mm |
| Bore position in 23200-series (smallest first) | 3 of 26 |
| Bore above smallest 23200-series size | 20 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 23222 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) sleeve-mounted execution of 23222; identical ISO 15 envelope, fits H2322 adapter sleeve on a 100 mm shaft. |
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 23222-CCK-W33 model number is decoded
23222-cck-w33 is the 1:12 tapered-bore execution of the 23200-series spherical roller bearing: the same two barrel-roller rows on a sphered outer raceway as 23222-cc-w33, but the inner-ring bore tapers 1 mm per 12 mm for adapter- or withdrawal-sleeve mounting, as listed by SKF in SKF catalogue PUB BU/P1 17000. On the SKF nameplate, 23222-cck-w33 follows the ISO 15 convention: 2 for the spherical roller type, 32 for the dimension series 32 (medium OD, extra wide), final digits 22 for the 110 mm bore. Sleeve mounting is why the K execution exists: a plain h9-tolerance shaft is enough because the adapter sleeve supplies the precision seat, and the bearing is removable without pulling over an interference journal — a separate order number from the cylindrical-bore bearing, never a field conversion. With C 626 kN and C0 765 kN, the 23222-cck-w33 load check covers radial plus moderate axial in either direction — but below the minimum load the rollers skid, so verify P ≥ 0.01·C0 at the lightest operating point. Over-driving the 23222-cck-w33 up its sleeve pinches radial clearance below the residual minimum and can crack the inner ring in service; under-driving leaves the sleeve seat loose, so the ring creeps and frets the sleeve — measure, do not estimate.
Typical equipment & failure modes
Common applications
- large vibrating screens and feeders
- marine propulsion and thruster shafts
- long through-shafts in conveyors, where a sleeve seat avoids a precision journal
- stepped shafts fitted with withdrawal sleeves against a fixed shoulder
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
- fretting corrosion and sleeve-seat scoring when drive-up is insufficient and the tapered inner ring creeps on the adapter sleeve
- surface distress and smearing when the relubrication interval is exceeded — the W33 groove is only effective if grease actually reaches the roller rows
- fretting corrosion on a loose rotating shaft seat or in vibratory stand-still
Selection pitfalls — read before you substitute
- Mount the 110 mm bore 23222-cck-w33 by induction heating (max 120 °C) or oil injection — driving a bearing of this section home through the rollers brinells both raceways, and the damage only speaks up as vibration hours later.
- The 23200-series series at 110 mm bore (200×69.8 mm) adds still more width for shock-loaded and vibratory loads; it does not interchange with a 231 bearing of the same bore because the 69.8 mm width changes abutment spacing, even though the 200 mm OD matches.
- The adapter sleeve is selected by actual shaft diameter, not by the 110 mm nominal bearing bore: H-sleeve part numbers span a small diameter range, so two different shaft diameters can use the same 23222-cck-w33 with different sleeves.
- The 23222-cck-w33 and its cylindrical-bore counterpart 23222-cc-w33 share envelope and load ratings (626/765 kN) but are not interchangeable in a housing already fitted for direct shaft mounting — the sleeve changes the assembly stack-up.
- 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 23222-cck-w33 pits long before its L10 life.
- The 626/765 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 23222 CCK/W33); sleeve, KM nut and MB washer are separate order numbers, and the catalogue version (SKF catalogue PUB BU/P1 17000) should travel with the mounting specification.
Frequently asked questions
What are the dimensions and catalogue data of 23222-cck-w33?
The SKF 23222 CCK/W33 is a double-row spherical roller bearing with a 1:12 tapered bore, 110 mm nominal bore, 200 mm outer diameter and 69.8 mm width (4.331 × 7.874 × 2.748 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: C 626 kN, C0 765 kN, Pu 76.5 kN, reference speed 2,200 r/min, limiting speed 3,200 r/min, mass about 12500 g. It is mounted on an adapter (H) or withdrawal (AH) sleeve, not directly on the shaft.
What does the K suffix mean on 23222-cck-w33?
K marks a 1:12 tapered bore for sleeve mounting — SKF writes EK or CCK(/W33), FAG writes -K- inside the suffix chain for sleeve mounting. The bearing seats on an H-series adapter sleeve with a KM locknut and MB lock washer (plain shaft, h9 tolerance), or on an AH withdrawal sleeve against a shaft shoulder. The rarer K30 suffix would instead mean a 1:30 taper; dimension series 40/41 spherical rollers commonly use it.
Which adapter sleeve fits the 23222-cck-w33?
The sleeve is selected by the actual shaft diameter in millimetres, not only by the 110 mm nominal bore: SKF H-sleeve numbers each cover a small shaft-diameter range and are width-series specific (H39/H30/H31/H32 matching dimension series 39/40/31/32), and each kit bundles the sleeve, KM locknut and MB lock washer. For shoulder locations use an AH withdrawal sleeve instead. Confirm the sleeve number against the SKF catalogue PUB BU/P1 17000 mounting tables for your shaft size.
How is the 23222-cck-w33 driven up and checked?
Mounting is controlled by radial-clearance reduction or axial drive-up distance from the SKF catalogue tables for the 1:12 taper, never by locknut torque. Measure clearance with feeler gauges before and after tightening the KM nut, stop at the tabulated decrease, and lock the MB washer tab. Over-drive removes too much clearance (inner-ring cracking risk); under-drive lets the sleeve creep and fret.
What is the difference between 23222-cck-w33 and 23222-cc-w33?
They share the ISO 15 envelope and the same 626/765 kN ratings, but 23222-cck-w33 has the 1:12 tapered bore for sleeve mounting on a plain shaft, while 23222-cc-w33 has a cylindrical bore for direct mounting on a machined interference journal (typically m6 with H7 housing). They are separate order numbers, not interchangeable in the same shaft arrangement.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions on 2026-09-26. Read our editorial & correction policy.