2215-EKTN9 bearing: complete specifications & equivalents
The 2215-EKTN9 is a ISO 15 radial bearing sized 75 x 130 x 31 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 130 mm |
| Width B | 31 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 58.5 kN |
| Basic static load rating C0 | 22 kN |
| Fatigue load limit Pu | 1.12 kN |
| Reference speed (thermal) | 9000 rpm |
| Limiting speed (mechanical) | 6300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1600 g |
| Manufacturer designation | 2215 EKTN9 |
| 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 | 2.953 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 1.22 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 27.5 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) | 16 of 23 |
| Bore above smallest 2200-series size | 65 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 2215 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×31 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 2215-ETN9 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 75×130×31 mm envelope with catalogue ratings within 10 %; 2215 ETN9 is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, only the seal/cage/bore execution differs. |
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 2215-EKTN9 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: 2215 carries code 15 = 75 mm (code × 5). Envelope 75×130×31 mm (2.953×5.118×1.22 in) with a 27.5 mm radial section height, C 58.5 kN, C0 22 kN and Pu 1.12 kN. The open 2215 EKTN9 carries no shields or seals and relies on application lubrication and external sealing. The EKTN9 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. Reference (thermal) speed 9000 r/min, limiting speed 6300 r/min, catalogue mass 1600 g.
Typical equipment & failure modes
Common applications
- industrial electric motors
- conveyor drum and pulley shafts
- agricultural gearboxes
- textile machinery drives
Known failure patterns
- lubricant starvation where no regreasing interval is maintained
- contamination wear when the open arrangement is used without adequate external sealing
- 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
- cage damage from running beyond the limiting speed
- raceway smearing under marginal lubrication at start-up
Selection pitfalls — read before you substitute
- Assign interference to the rotating ring: on a 75 mm rotating shaft use a k5 seat with an H7 housing; reverse the logic if the outer ring rotates.
- Mount 2215-EKTN9 by heating the inner ring (max 120 °C) on a cylindrical bore — driving it home through the outer ring or balls brinells the raceways.
- On a sleeve-mounted 2215-EKTN9, lock the sleeve against the shaft shoulder; a loose sleeve creeps and frets both the shaft and the bore.
- The EKTN9 suffix on 2215-EKTN9 denotes a glass-fibre-reinforced polyamide 66 cage: quiet and light at the 6300 r/min limiting speed, but it softens above roughly 120 °C — check the oil temperature in hot drives.
- Mount 2215-EKTN9 by heating the inner ring (max 120 °C) on a cylindrical bore — driving it home through the outer ring or balls brinells the raceways.
- The fatigue load limit is 1.12 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
Frequently asked questions
What are the dimensions of 2215-EKTN9?
SKF 2215 EKTN9 measures 75 mm bore × 130 mm OD × 31 mm width (2.953 × 5.118 × 1.22 in), mass about 1600 g. It is open, with no shields or seals.
How does the bore code in 2215 work?
The final two digits of 2215 are bore code 15, multiplied by 5 to give 75 mm.
Which fits should I use for 2215-EKTN9?
With a rotating inner ring use roughly k5 on the shaft and H7 in the 130 mm housing; reverse the interference if the outer ring rotates.
How heavy is 2215-EKTN9?
Catalogue mass is 1600 g for 2215 EKTN9; seal and cage executions of the same envelope differ by a few grams.
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.