23022-CCK-W33 bearing: complete specifications & equivalents
The 23022-CCK-W33 is a ISO 15 radial bearing sized 110 x 170 x 45 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 | 170 mm |
| Width B | 45 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 326 kN |
| Basic static load rating C0 | 440 kN |
| Fatigue load limit Pu | 46.5 kN |
| Reference speed (thermal) | 3400 rpm |
| Limiting speed (mechanical) | 4300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 5750 g |
| Manufacturer designation | SKF 23022 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 & 23000-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 6.693 in |
| Width B | 1.772 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 30 mm |
| Smallest bore in 23000-series | 70 mm |
| Largest outer diameter in 23000-series | 480 mm |
| Width range across 23000-series | 27–121 mm |
| Bore position in 23000-series (smallest first) | 8 of 23 |
| Bore above smallest 23000-series size | 40 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 23022 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) sleeve-mounted execution of 23022; identical ISO 15 envelope, fits H322 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 23022-CCK-W33 model number is decoded
For sleeve mounting on a 110 mm shaft, SKF order number SKF 23022 CCK/W33 is the 1:12 tapered-bore spherical roller bearing in the 23000-series family (dimension series 30 (slim OD, extra-wide)); the cylindrical-bore equivalent is a separate order number, 23022-cc-w33. Digit by digit, 23022-cck-w33 reads as bearing type 2 (spherical roller, two barrel-roller rows), dimension series 30, and bore reference 22 resolving to 110 mm; 170 mm OD and 45 mm width are the matching ISO 15 boundary values. Reading the suffix on 23022-cck-w33, the K (or EK/CCK) element changes only the bore — 1:12 taper for sleeve mounting — while the rest of the suffix chain (CC cages with W33 groove) keeps the same internal design, cage and W33 relubrication features as the cylindrical-bore 23022-cc-w33. At 3,400 r/min reference speed the 30.0 mm-section 23022-cck-w33 is governed thermally by lubricant flow through the W33 groove and the two-row roller complement; grease or oil selection should be made against that value, with 4,300 r/min as the mechanical ceiling. After drive-up, re-check radial clearance and then swing the outer ring through its self-aligning range: the sphered raceway of the 23022-cck-w33 must still tilt ≈ 0.5–2.5° freely — a joint that binds after sleeve mounting signals excessive drive-up or a cocked sleeve.
Typical equipment & failure modes
Common applications
- heavy conveyor head shafts in mining
- jaw and cone crusher main shafts
- shafting produced to commercial tolerances, where the adapter sleeve supplies the precision seat
- split-housing plummer block arrangements with bearings swapped in situ
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
- sleeve seizure and shaft seat damage from omitting the anti-seize film between withdrawal sleeve and journal before drive-up
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- brinelling from static overload or impact during handling and mounting
Selection pitfalls — read before you substitute
- Mount the 110 mm bore 23022-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 23000-series series at 110 mm bore (170×45 mm) is the slim-OD envelope: it buys radial space but gives up capacity against a 222-series bearing of the same bore — confirm the L10 margin before downsizing into it.
- The 23022-cck-w33 and its cylindrical-bore counterpart 23022-cc-w33 share envelope and load ratings (326/440 kN) but are not interchangeable in a housing already fitted for direct shaft mounting — the sleeve changes the assembly stack-up.
- Never apply the drive-up or clearance-reduction figures for this 1:12 tapered 23022-cck-w33 to a bearing of the other taper (1:12 vs 1:30); the steeper taper moves far less clearance per nut turn and the targets come from different catalogue tables.
- The 23022-cck-w33 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 326/440 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
- The 326/440 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 23022 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 23022-cck-w33?
The SKF 23022 CCK/W33 is a double-row spherical roller bearing with a 1:12 tapered bore, 110 mm nominal bore, 170 mm outer diameter and 45 mm width (4.331 × 6.693 × 1.772 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: C 326 kN, C0 440 kN, Pu 46.5 kN, reference speed 3,400 r/min, limiting speed 4,300 r/min, mass about 5750 g. It is mounted on an adapter (H) or withdrawal (AH) sleeve, not directly on the shaft.
What does the K suffix mean on 23022-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 23022-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 23022-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 23022-cck-w33 and 23022-cc-w33?
They share the ISO 15 envelope and the same 326/440 kN ratings, but 23022-cck-w33 has the 1:12 tapered bore for sleeve mounting on a plain shaft, while 23022-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.