2201-ETN9 bearing: complete specifications & equivalents
The 2201-ETN9 is a ISO 15 radial bearing sized 12 x 32 x 14 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 12 mm |
| Outer diameter D | 32 mm |
| Width B | 14 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 8.52 kN |
| Basic static load rating C0 | 1.9 kN |
| Fatigue load limit Pu | 0.098 kN |
| Reference speed (thermal) | 45000 rpm |
| Limiting speed (mechanical) | 30000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 53 g |
| Manufacturer designation | 2201 ETN9 |
| 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 | 0.472 in |
|---|---|
| Outer diameter D | 1.26 in |
| Width B | 0.551 in |
| ISO bore code | 01 |
| Radial section height (D−d)/2 | 10 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) | 2 of 23 |
| Bore above smallest 2200-series size | 2 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 2201 | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 2201S on the same 12×32×14 mm envelope with ratings within 10 % — interchange after checking seal, cage and bore details on both pages. |
| 2201-E-2RS1TN9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×32×14 mm envelope, but catalogue C/C0 differ between executions (8.52/1.9 kN vs 6.24/1.43 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 2201-ETN9 model number is decoded
The 22xx series is the wide light-section self-aligning ball bearing (ISO dimension series 22). bore code 01 follows the 10/12/15/17 mm exception table, so 2201 fits a 12 mm shaft. Envelope 12×32×14 mm (0.472×1.26×0.551 in) with a 10.0 mm radial section height, C 8.52 kN, C0 1.9 kN and Pu 0.098 kN. The open 2201 ETN9 carries no shields or seals and relies on application lubrication and external sealing. The ETN9 suffix identifies the glass-fibre-reinforced polyamide 66 cage execution. The bore is cylindrical (straight), for a press-fit on a 12 mm shaft. Reference (thermal) speed 45000 r/min, limiting speed 30000 r/min, catalogue mass 53 g.
Typical equipment & failure modes
Common applications
- fan and blower shafts
- woodworking machine spindles
- light gearbox layshafts
- food-processing conveyors
Known failure patterns
- lubricant starvation where no regreasing interval is maintained
- contamination wear when the open arrangement is used without adequate external sealing
- 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 2201-ETN9 chamfer so the 14 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Fillet radii must clear the 2201-ETN9 chamfer so the 14 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- The ETN9 suffix on 2201-ETN9 denotes a glass-fibre-reinforced polyamide 66 cage: quiet and light at the 30000 r/min limiting speed, but it softens above roughly 120 °C — check the oil temperature in hot drives.
- The spherical outer raceway lets 2201-ETN9 tolerate shaft deflection, but it does not increase thrust capacity — combined loads still need an angular-contact or deep-groove bearing.
- Fillet radii must clear the 2201-ETN9 chamfer so the 14 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Self-aligning ball bearings tolerate up to roughly 2–3° of static misalignment, but the sealed 2201-ETN9 (2RS1) allows less — the lip seal binds before the spherical raceway does.
Frequently asked questions
What are the dimensions of 2201-ETN9?
SKF 2201 ETN9 measures 12 mm bore × 32 mm OD × 14 mm width (0.472 × 1.26 × 0.551 in), mass about 53 g. It is open, with no shields or seals.
How does the bore code in 2201 work?
Codes 00–03 follow the exception table (10, 12, 15, 17 mm): 2201 fits a 12 mm shaft. Code × 5 starts at code 04.
What load can 2201-ETN9 take?
Catalogue values for 2201 ETN9: dynamic C 8.52 kN, static C0 1.9 kN, fatigue limit Pu 0.098 kN. Use C in life calculation and C0 for static checks at 12 mm bore.
What is the speed rating of 2201-ETN9?
SKF lists a 45000 r/min thermal reference speed and a 30000 r/min mechanical limiting speed for 2201 ETN9; real limits also depend on lubrication and fits.
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.