22232-CCK-W33 bearing: complete specifications & equivalents
The 22232-CCK-W33 is a ISO 15 radial bearing sized 160 x 290 x 80 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 160 mm |
| Outer diameter D | 290 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1043 kN |
| Basic static load rating C0 | 1290 kN |
| Fatigue load limit Pu | 118 kN |
| Reference speed (thermal) | 2000 rpm |
| Limiting speed (mechanical) | 2800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 29500 g |
| Manufacturer designation | SKF 22232 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 & 22200-series range
| Bore d | 6.299 in |
|---|---|
| Outer diameter D | 11.417 in |
| Width B | 3.15 in |
| ISO bore code | 32 |
| Radial section height (D−d)/2 | 65 mm |
| Smallest bore in 22200-series | 25 mm |
| Largest outer diameter in 22200-series | 290 mm |
| Width range across 22200-series | 18–80 mm |
| Bore position in 22200-series (smallest first) | 22 of 22 |
| Bore above smallest 22200-series size | 135 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22232 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) sleeve-mounted execution of 22232; identical ISO 15 envelope, fits H3132 adapter sleeve on a 110 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 22232-CCK-W33 model number is decoded
For sleeve mounting on a 160 mm shaft, SKF order number SKF 22232 CCK/W33 is the 1:12 tapered-bore spherical roller bearing in the 22200-series family (dimension series 22 (medium OD, wide)); the cylindrical-bore equivalent is a separate order number, 22232-cc-w33. Reading the designation: the leading 2 marks a spherical roller bearing, the 22 is the ISO 15 dimension series (dimension series 22 (medium OD, wide)), and the last two digits encode the 160 mm bore; the 290 mm OD and 80 mm width follow the ISO 15 general plan. Reading the suffix on 22232-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 22232-cc-w33. Selection arithmetic: the C0/C ratio is about 1.24 (static 1290 kN against dynamic 1043 kN), typical of a spherical roller sized for heavy combined loads, and the 118 kN fatigue load limit Pu is the equivalent-load floor used in the life calculation. Over-driving the 22232-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
- SAG and ball-mill drive shafts
- large mining 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
- fretting corrosion and sleeve-seat scoring when drive-up is insufficient and the tapered inner ring creeps on the adapter sleeve
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- smearing on the roller-raceway contact during skid starts below the minimum load
Selection pitfalls — read before you substitute
- At 160 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 22200-series series at 160 mm bore (290×80 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.
- The 22232-cck-w33 and its cylindrical-bore counterpart 22232-cc-w33 share envelope and load ratings (1043/1290 kN) but are not interchangeable in a housing already fitted for direct shaft mounting — the sleeve changes the assembly stack-up.
- A loose sleeve after the first weeks of service usually means inadequate initial drive-up; re-checking clearance without dismounting is possible through the 80 mm-wide roller rows with feeler gauges — do not simply tighten the KM nut until vibration stops.
- The 29500 g mass and 80 mm width mean abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the outer ring and concentrates load on one roller row of 22232-cck-w33.
- The 1043/1290 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 22232 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 22232-cck-w33?
The SKF 22232 CCK/W33 is a double-row spherical roller bearing with a 1:12 tapered bore, 160 mm nominal bore, 290 mm outer diameter and 80 mm width (6.299 × 11.417 × 3.15 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: C 1043 kN, C0 1290 kN, Pu 118 kN, reference speed 2,000 r/min, limiting speed 2,800 r/min, mass about 29500 g. It is mounted on an adapter (H) or withdrawal (AH) sleeve, not directly on the shaft.
What does the K suffix mean on 22232-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 22232-cck-w33?
The sleeve is selected by the actual shaft diameter in millimetres, not only by the 160 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 22232-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 22232-cck-w33 and 22232-cc-w33?
They share the ISO 15 envelope and the same 1043/1290 kN ratings, but 22232-cck-w33 has the 1:12 tapered bore for sleeve mounting on a plain shaft, while 22232-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.