2203-E-2RS1TN9 bearing: complete specifications & equivalents
The 2203-E-2RS1TN9 is a ISO 15 radial bearing sized 17 x 40 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 | 17 mm |
| Outer diameter D | 40 mm |
| Width B | 16 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 8.84 kN |
| Basic static load rating C0 | 2.2 kN |
| Fatigue load limit Pu | 0.12 kN |
| Limiting speed (mechanical) | 12000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 89 g |
| Manufacturer designation | 2203 E-2RS1TN9 |
| 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 | 0.669 in |
|---|---|
| Outer diameter D | 1.575 in |
| Width B | 0.63 in |
| ISO bore code | 03 |
| Radial section height (D−d)/2 | 11.5 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) | 4 of 23 |
| Bore above smallest 2200-series size | 7 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 2203 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | NTN bearing 2203S on the same 17×40×16 mm envelope, but catalogue C/C0 differ (8.84/2.2 kN vs 9.95/2.42 kN) — envelope interchange only after a load check. |
| 2203-ETN9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 17×40×16 mm envelope, but catalogue C/C0 differ between executions (8.84/2.2 kN vs 10.6/2.55 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 2203-E-2RS1TN9 model number is decoded
The 22xx series is the wide light-section self-aligning ball bearing (ISO dimension series 22). bore code 03 follows the 10/12/15/17 mm exception table, so 2203 fits a 17 mm shaft. Envelope 17×40×16 mm (0.669×1.575×0.63 in) with a 11.5 mm radial section height, C 8.84 kN, C0 2.2 kN and Pu 0.12 kN. SKF spells the sealed execution 2203 E-2RS1TN9 (suffix 2RS1): two contact elastomer lips over a lifetime grease fill; the lips add drag, and no thermal reference speed is published. The E-2RS1TN9 suffix identifies the glass-fibre-reinforced polyamide 66 cage execution. The bore is cylindrical (straight), for a press-fit on a 17 mm shaft. Limiting speed 12000 r/min, catalogue mass 89 g.
Typical equipment & failure modes
Common applications
- woodworking machine spindles
- light gearbox layshafts
- food-processing conveyors
- small electric motors
Known failure patterns
- fine dust or moisture passing a worn seal lip in dirty or wet duty
- grease loss when the sealed-for-life cavity is overheated with no relubrication path
- excessive misalignment loading one ball row heavily and spalling it early
- rolling-contact fatigue spalling once the catalogue L10 life is exceeded
Selection pitfalls — read before you substitute
- The fatigue load limit is 0.12 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- Self-aligning ball bearings tolerate up to roughly 2–3° of static misalignment, but the sealed 2203-E-2RS1TN9 (2RS1) allows less — the lip seal binds before the spherical raceway does.
- The 2RS1 contact seals on 2203-E-2RS1TN9 add drag and cap speed at 12000 r/min; no thermal reference speed is published because seal and grease life govern, not the bearing steel.
- The E-2RS1TN9 suffix on 2203-E-2RS1TN9 denotes a glass-fibre-reinforced polyamide 66 cage: quiet and light at the 12000 r/min limiting speed, but it softens above roughly 120 °C — check the oil temperature in hot drives.
- The fatigue load limit is 0.12 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- At 17 mm bore, C3 clearance is the safe choice when interference fits plus temperature rise consume the CN clearance; a hot tight bearing with no residual clearance fails fast.
Frequently asked questions
What are the dimensions of 2203-E-2RS1TN9?
SKF 2203 E-2RS1TN9 measures 17 mm bore × 40 mm OD × 16 mm width (0.669 × 1.575 × 0.63 in), mass about 89 g. It has two contact rubber seals (2RS1) and a lifetime grease fill.
How does the bore code in 2203 work?
Codes 00–03 follow the exception table (10, 12, 15, 17 mm): 2203 fits a 17 mm shaft. Code × 5 starts at code 04.
Can 2203-E-2RS1TN9 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.
Which fits should I use for 2203-E-2RS1TN9?
With a rotating inner ring use roughly j5/k5 on the shaft and H7 in the 40 mm housing; reverse the interference if the outer ring rotates.
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.