3222-A bearing: complete specifications & equivalents
The 3222-A 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 | 212 kN |
| Basic static load rating C0 | 212 kN |
| Fatigue load limit Pu | 7.2 kN |
| Reference speed (thermal) | 3400 rpm |
| Limiting speed (mechanical) | 2800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 8800 g |
| Manufacturer designation | 3222 A |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); 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 & 3200-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 3200-series | 10 mm |
| Largest outer diameter in 3200-series | 200 mm |
| Width range across 3200-series | 14–69.8 mm |
| Bore position in 3200-series (smallest first) | 22 of 22 |
| Bore above smallest 3200-series size | 100 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 3222-A model number is decoded
3222 A is SKF's 110 mm-bore double-row angular-contact ball bearing of the 3200 series — two ball rows back-to-back for two-direction axial location in one unit, 110×200×69.8 mm. A on a double-row bearing means no filling slots, so both rows carry their full ball complement in both directions. with no cage suffix the double-row A execution uses the standard stamped steel ball-centred cage. Envelope 110×200×69.8 mm (4.331×7.874×2.748 in), 45.0 mm radial section height, C 212 kN, C0 212 kN, Pu 7.2 kN.reference speed 3,400 r/min (thermal) and limiting speed 2,800 r/min (mechanical), catalogue mass 8800 g. Sizing arithmetic on the 110 mm bore: 212 kN C divided by the 45.0 mm radial section height gives 4.7 kN per section millimetre; the 8800 g mass and 3 % Pu/C share frame the light-load floor for the adjusted-life check. Mass and section check: 8800 g inside the 110×200×69.8 mm outline leaves a 45.0 mm radial section, and the 212 kN static rating is 1.00× the dynamic rating — plan static safety and minimum load against those numbers rather than against sister executions. Speed-ratio note for this exact unit: the reference speed is 3,400 r/min against a 2,800 r/min limiting speed, i.e. a reference-to-limit ratio of 1.21.
Typical equipment & failure modes
Common applications
- heavy gearbox shafts carrying reversing thrust
- process pump and agitator drives
- crane and winch gearboxes
Known failure patterns
- false brinelling on the loaded row while the shaft stands idle under vibration
- snap-ring groove or two-piece-ring damage when the D execution is pressed home through the wrong ring
- stamped steel cage noise and pocket wear in marginal-lubrication starts, where a brass-cage execution would survive
- fretting corrosion on a loose rotating shaft seat
- raceway staining from water in the lubricant during idle periods
Selection pitfalls — read before you substitute
- Interference goes on the rotating ring (about m6 at 110 mm bore); the wide 69.8 mm ring is sensitive to tilted seats, so check squareness before clamping.
- Controlled axial clearance is the heart of the design: the A execution is produced to the standard double-row axial clearance; check residual clearance after mounting and at operating temperature.
- Compared with a single-row pair of the same bore, the double-row 3222 occupies less axial space but offers less freedom to adjust preload — do not substitute without re-checking the arrangement.
- Interference goes on the rotating ring (about m6 at 110 mm bore); the wide 69.8 mm ring is sensitive to tilted seats, so check squareness before clamping.
- Catalogue ratings are SKF PUB BU/P1 17000 figures for 3222 A as the double a steel execution; the other order numbers of the 3222 size are different products and may carry different ratings — always quote the full designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 3222-A?
3222 A measures 110 mm bore × 200 mm OD × 69.8 mm width (4.331 × 7.874 × 2.748 in), mass about 8800 g. SKF 17000 ratings: C 212 kN, C0 212 kN, Pu 7.2 kN, reference speed 3,400 r/min (thermal) and limiting speed 2,800 r/min (mechanical).
What does the A suffix mean?
A on a double-row bearing means no filling slots, so both rows carry their full ball complement in both directions. with no cage suffix the double-row A execution uses the standard stamped steel ball-centred cage.
Does the 3222 double-row bearing need pairing?
No — both ball rows are built into one bearing, so bidirectional location does not require a second unit. Controlled axial clearance is part of the design rather than a field adjustment.
Which fits should I use?
With a rotating inner ring use roughly m6 on the 110 mm shaft and H7 in the 200 mm housing; check the wide ring seats square because the 69.8 mm width is sensitive to tilt.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.