2212-E-2RS1KTN9 bearing: complete specifications & equivalents
The 2212-E-2RS1KTN9 is a ISO 15 radial bearing sized 60 x 110 x 28 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 | 60 mm |
| Outer diameter D | 110 mm |
| Width B | 28 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 31.2 kN |
| Basic static load rating C0 | 12.2 kN |
| Fatigue load limit Pu | 0.62 kN |
| Limiting speed (mechanical) | 3800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1050 g |
| Manufacturer designation | 2212 E-2RS1KTN9 |
| 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 & 2200-series range
| Bore d | 2.362 in |
|---|---|
| Outer diameter D | 4.331 in |
| Width B | 1.102 in |
| ISO bore code | 12 |
| Radial section height (D−d)/2 | 25 mm |
| Smallest bore in 2200-series | 10 mm |
| Largest outer diameter in 2200-series | 200 mm |
| Width range across 2200-series | 14–53 mm |
| Bore position in 2200-series (smallest first) | 13 of 23 |
| Bore above smallest 2200-series size | 50 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 2212 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×110×28 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 2212-E-2RS1TN9 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 60×110×28 mm envelope with catalogue ratings within 10 %; 2212 E-2RS1TN9 is the glass-fibre PA66 cage, two contact elastomer seals execution of this size — boundary dimensions interchangeable, only the seal/cage/bore execution differs. |
| 2212-ETN9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×110×28 mm envelope, but catalogue C/C0 differ between executions (31.2/12.2 kN vs 48.8/17 kN) — boundary dimensions match, not a load-rating equivalent. |
| 2212-EKTN9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×110×28 mm envelope, but catalogue C/C0 differ between executions (31.2/12.2 kN vs 48.8/17 kN) — boundary dimensions match, not a load-rating equivalent. |
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 2212-E-2RS1KTN9 model number is decoded
The 22xx series is the wide light-section self-aligning ball bearing (ISO dimension series 22). the last two digits encode the bore: 2212 carries code 12 = 60 mm (code × 5). Envelope 60×110×28 mm (2.362×4.331×1.102 in) with a 25.0 mm radial section height, C 31.2 kN, C0 12.2 kN and Pu 0.62 kN. SKF spells the sealed execution 2212 E-2RS1KTN9 (suffix 2RS1): two contact elastomer lips over a lifetime grease fill; the lips add drag, and no thermal reference speed is published. The E-2RS1KTN9 suffix identifies the glass-fibre-reinforced polyamide 66 cage execution. The K suffix marks a 1:12 tapered bore for direct mounting on a tapered shaft or with an adapter sleeve. Limiting speed 3800 r/min, catalogue mass 1050 g.
Typical equipment & failure modes
Common applications
- industrial electric motors
- conveyor drum and pulley shafts
- agricultural gearboxes
- textile machinery drives
Known failure patterns
- grease loss when the sealed-for-life cavity is overheated with no relubrication path
- contact-seal lip hardening and grease-life expiry after long high-temperature service
- incorrect sleeve tightening that leaves the tapered bore loose or over-expanded, changing internal clearance
- adapter-sleeve fretting when the sleeve is not locked against the shaft shoulder
- false brinelling from vibration while the shaft stands idle
- fretting corrosion on a creeping shaft or housing seat
Selection pitfalls — read before you substitute
- Fillet radii must clear the 2212-E-2RS1KTN9 chamfer so the 28 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Mount 2212-E-2RS1KTN9 by heating the inner ring (max 120 °C) on a cylindrical bore — driving it home through the outer ring or balls brinells the raceways.
- Sealed self-aligning bearings tolerate less misalignment than open ones: keep static misalignment under roughly 1° on 2212-E-2RS1KTN9 to avoid seal-lip binding.
- The K suffix means a 1:12 tapered bore: 2212-E-2RS1KTN9 is not a drop-in for the straight-bore version — it needs a tapered shaft or an H-series adapter sleeve.
- The E-2RS1KTN9 suffix on 2212-E-2RS1KTN9 denotes a glass-fibre-reinforced polyamide 66 cage: quiet and light at the 3800 r/min limiting speed, but it softens above roughly 120 °C — check the oil temperature in hot drives.
- Self-aligning ball bearings tolerate up to roughly 2–3° of static misalignment, but the sealed 2212-E-2RS1KTN9 (2RS1) allows less — the lip seal binds before the spherical raceway does.
Frequently asked questions
What are the dimensions of 2212-E-2RS1KTN9?
SKF 2212 E-2RS1KTN9 measures 60 mm bore × 110 mm OD × 28 mm width (2.362 × 4.331 × 1.102 in), mass about 1050 g. It has two contact rubber seals (2RS1) and a lifetime grease fill.
How does the bore code in 2212 work?
The final two digits of 2212 are bore code 12, multiplied by 5 to give 60 mm.
How much misalignment can 2212-E-2RS1KTN9 tolerate?
Self-aligning ball bearings tolerate roughly 2–3° of static misalignment for open executions; sealed 2RS1 variants like 2212-E-2RS1KTN9 allow less (about 1°) because the seal lip binds first.
Can 2212-E-2RS1KTN9 take axial load?
A self-aligning ball bearing can carry some axial load in addition to radial load, but its axial capacity is lower than an angular-contact bearing of the same envelope. Use it where misalignment, not thrust, is the main requirement.
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.