61822-2RS bearing: complete specifications & equivalents
The 61822-2RS is a ISO 15 radial bearing sized 110 x 140 x 16 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 110 mm |
| Outer diameter D | 140 mm |
| Width B | 16 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 28.1 kN |
| Basic static load rating C0 | 26 kN |
| Fatigue load limit Pu | 1.25 kN |
| Limiting speed (mechanical) | 2600 rpm |
| Operating temperature | -30 to +110 °C |
| Mass | 600 g |
| Manufacturer designation | SKF 61822-2RS1 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-25 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-24
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 & 61800-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 0.63 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 15 mm |
| Smallest bore in 61800-series | 1 mm |
| Largest outer diameter in 61800-series | 1820 mm |
| Width range across 61800-series | 1–140 mm |
| Bore position in 61800-series (smallest first) | 33 of 74 |
| Bore above smallest 61800-series size | 109 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 61822-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 61822-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant (2RS vs OPEN) and load ratings differ — confirm sealing and rating before substituting. |
| 61822-RSR-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant (2RS vs RSR) and load ratings differ — confirm sealing and rating before substituting. |
| 61822-ZZ | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant (2RS vs ZZ) and load ratings differ — confirm sealing and rating before substituting. |
| 61822-2RS-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
| 61822-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 61822-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 61822-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×140×16 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — 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 61822-2RS model number is decoded
In the 61800-series (diameter series 8 of ISO 15) the last two digits encode the bore: 61822 carries bore code 22 = 110 mm. Outside diameter 140 mm and width 16 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. SKF's contact-seal catalogue number is 61822-2RS1 (older text: -2RS1), mapped here from the industry-neutral -2RS spelling.
Typical equipment & failure modes
Common applications
- space-constrained gearboxes
- clutch and transmission assemblies
- robotics and automation joints
- lay shafts and idler shafts
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)
- brinelling from static overload or hammering during mounting
- false brinelling from vibration while the shaft is stationary
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.
- Only 15.0 mm of radial section separates bore and OD on the 618xx series at 110 mm: ring flex from clamping or an oval housing bore transfers straight into raceway stress, so seat roundness matters more here than on a 6222.
- Contact seals add drag and heat: 61822-2RS runs slower and cooler-limited than the open 61822; 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 61822-2RS in solvent or press it home via the outer ring; solvent destroys the grease thickener and mounting force through the seal deforms the lip.
- Vibration during standstill brinells the raceways of a 110 mm bearing at ball spacing; if the machine sits idle next to running equipment, turn the shaft over periodically or isolate the arrangement.
- A 110 mm bore listing showing the right d/D/B but no standard or precision-class reference may be a loose-tolerance import; measure bore/OD spread before fitting it to a machined shaft.
- SKF catalogues the contact-sealed version as 61822-2RS1 (older printings may read -2RS1); it is shipped pre-greased and its 2600 r/min limiting speed is set by seal-lip drag and grease life versus the open bearing's 9500 r/min thermal reference speed.
- The 28.1/26 kN ratings here are SKF Explorer-class figures from catalogue PUB BU/P1 17000/1 EN (Oct 2018); SKF can revise internal geometry and ratings without changing the designation, so treat the catalogue version and date as part of the specification and re-verify for critical drives.
Frequently asked questions
What are the dimensions of a 61822-2RS bearing?
A 61822-2RS deep-groove ball bearing has a 110 mm bore, 140 mm outer diameter and 16 mm width (4.331 × 5.512 × 0.63 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased.
How does the 61822 bore code work?
The last two digits of 61822 are bore code 22, giving 22 × 5 = 110 mm bore. The 140 mm outside diameter and 16 mm width follow the ISO 15 diameter series, not the bore code alone.
What does the 2RS suffix on 61822-2RS 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 61800 compare with other series at the same 110 mm bore?
618 is an extra-thin section: 140×16 mm, only 15.0 mm radial section at 110 mm bore, far smaller than a 6222, for space-limited layouts at the cost of load rating and misalignment tolerance.
What is the SKF designation and catalogue data for 61822-2RS?
In the SKF Rolling Bearings catalogue this size is listed as 61822-2RS1 — two contact elastomer seals over a lifetime grease fill, 110×140×16 mm per ISO 15. Quoted values: C 28.1 kN, C0 26 kN, Pu 1.25 kN, limiting speed 2600 r/min, mass 600 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 61822-2RS.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-25. Read our editorial & correction policy.