6322-2RS bearing: complete specifications & equivalents
The 6322-2RS is a ISO 15 radial bearing sized 110 x 240 x 50 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 110 mm |
| Outer diameter D | 240 mm |
| Width B | 50 mm |
| Seal / shield | 2RS |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Operating temperature | -30 to +110 °C |
| Mass (geometry estimate) | 9117 g |
| Standard | ISO 15 |
| Catalog version | iso15-ed4-geometry |
| Last verified | 2026-09-23 |
Source: ISO 15 boundary-dimensions standard · extracted 2026-09-23
Standard-interchange bearing: dimensions per ISO 15; CN clearance, P0 tolerance and a stamped-steel cage are catalogue defaults unless the supplier states otherwise, and mass is a geometry-derived estimate. Brand catalogue load ratings and limiting speeds for 6322 are being backfilled — use the inquiry form for certified values.
Dimensions in inches & 6300-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 9.449 in |
| Width B | 1.969 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 65 mm |
| Smallest bore in 6300-series | 10 mm |
| Largest outer diameter in 6300-series | 400 mm |
| Width range across 6300-series | 11–78 mm |
| Bore position in 6300-series (smallest first) | 23 of 30 |
| Bore above smallest 6300-series size | 100 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6322 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×240×50 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
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 6322-2RS model number is decoded
In the 6300-series (ISO 15 diameter series 3) the last two digits encode the bore: 6322 carries bore code 22 = 110 mm. Outside diameter 240 mm and width 50 mm come from the ISO 15 boundary-dimensions general plan. Suffix -2RS denotes two contact-type elastomer seals over a lifetime grease fill; the sealing lips add drag compared with open or shielded versions. For normal-load mounting with a rotating inner ring on a 110 mm shaft, typical catalogue practice is a m6 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude.
Typical equipment & failure modes
Common applications
- industrial fans and blowers
- hoists and winches
- heavy conveyors
- pulp and paper machinery
Known failure patterns
- seal-lip hardening and loss of pre-grease in sustained high-temperature service
- grease-life expiry in the sealed-for-life cavity (no relubrication path)
- raceway smearing under marginal lubrication at start-up
- edge loading from shaft deflection or housing misalignment
Selection pitfalls — read before you substitute
- Mount this 110 mm bore bearing by heating the inner ring (induction heater, max 120 °C) — never drive it home through the outer ring or balls, that brinells the raceways.
- The 63xx medium series gains rating at 110 mm bore through a 240 mm OD and 50 mm width; the heavier rolling elements also trade away some speed versus a 6222.
- Contact seals add drag and heat: 6322-2RS runs slower and cooler-limited than the open 6322; rubber lips are generally limited to roughly 80–110 °C continuous depending on grease, and C3 clearance is the common hot-duty choice.
- Never wash a sealed 6322-2RS in solvent or press it home via the outer ring; solvent destroys the grease thickener and mounting force through the seal deforms the lip.
- Suffixes stack in a defined order — clearance follows the seal code, e.g. 6322-2RS-C3. No clearance suffix means normal CN clearance.
Frequently asked questions
What are the dimensions of a 6322-2RS bearing?
A 6322-2RS deep-groove ball bearing has a 110 mm bore, 240 mm outer diameter and 50 mm width (4.331 × 9.449 × 1.969 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased. Geometry-based estimated mass is about 9117 g for a steel-cage unit; catalogue masses vary slightly with seal and cage design.
How does the 6322 bore code work?
The last two digits of 6322 are bore code 22, giving 22 × 5 = 110 mm bore. The 240 mm outside diameter and 50 mm width follow the ISO 15 diameter series, not the bore code alone.
What does the 2RS suffix on 6322-2RS mean?
2RS means two contact elastomer seals, one each side, usually over a lifetime grease fill. Sealing against dust and moisture is better than ZZ shields, but the lip drag lowers the speed and temperature ceiling.
How does the 6300 compare with other series at the same 110 mm bore?
The '3' is the medium diameter series: 240×50 mm, 65.0 mm radial section at 110 mm bore, carrying more load than a 6222 but needing a larger housing bore and giving up some speed.
Are 6322 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 6322 uses the same ISO 15 envelope (110×240×50 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting. Seal suffixes also differ by brand (2RS, DDU, LLU and similar).
Reviewed & verified by the MPN Base engineering desk against source catalog iso15-ed4-geometry on 2026-09-23. Read our editorial & correction policy.