2303-2RS Self-Aligning Ball Bearing (17x47x19mm)
How to read this designation →
Bearing dimensions and basic technical information.
Base model: 2303
Related designations: SKF 2303 E-2RS1TN9 · Schaeffler (FAG) 2303-2RS-TVH
Suffix Information
Manufacturer Ratings
Load-rating symbols are printed as each manufacturer writes them in its own catalogue, so the same quantity can carry a different symbol from brand to brand.
| Brand | Dynamic Load Rating | Static Load Rating | Fatigue Load Limit |
|---|---|---|---|
| SKF 2303 E-2RS1TN9 | 14.3 kN | 3.55 kN | 0.19 kN |
| Schaeffler (FAG) 2303-2RS-TVH | 13.9 kN | 3.2 kN | 0.203 kN |
Speed Ratings
Speed limits depend on sealing and lubrication, and definitions differ by manufacturer. The figures below are for this sealed version (2303-2RS). Contact seals are greased for life and run slower than the open bearing. Always confirm the exact variant in the manufacturer's table.
| Brand | Grease sealed (2RS) | Oil sealed (2RS) | Reference | Limiting |
|---|---|---|---|---|
| SKF 2303 E-2RS1TN9 | — | — | — | 11,000 r/min |
| Schaeffler (FAG) 2303-2RS-TVH | — | — | — | 10,100 r/min |
References
- SKF — SKF Group, Rolling Bearings, PUB BU/P1 17000/1 EN, Oct. 2018.
- Schaeffler (FAG) — Schaeffler Technologies AG & Co. KG, Rolling Bearings, HR 1, Herzogenaurach, Germany, Feb. 2025.
About This Type
Self-aligning ball bearings have two rows of balls running in a spherical outer-ring raceway, so the bearing accommodates shaft misalignment and housing deflection without edge loading. They carry moderate radial loads and light axial loads in both directions. Typical applications include agricultural and textile machinery, conveyors, fans and blowers, and woodworking machines — arrangements where perfect alignment cannot be held.
This type is the low-friction, high-speed choice when misalignment is expected but loads stay moderate; for heavy loads a spherical roller bearing is the stronger alternative. The CN/C2/C3 clearance groups apply, with C3 common where fits are tight or temperatures run high. Most sizes are available with a cylindrical bore or a tapered bore (suffix K) for adapter-sleeve mounting, and many come open or with integral contact seals.
Tapered-bore versions are mounted on adapter or withdrawal sleeves with the drive-up method, measuring the clearance reduction rather than relying on nut torque; the spherical raceway accommodates residual misalignment but not an over-tightened sleeve, which removes the internal clearance. Sealed variants are greased for life and need no relubrication.
Series note: The 23 series is the wide medium design, the highest load ratings among the common series for a given bore.
Related Guides
Disclaimer: Data on this page is compiled from publicly available online sources for reference only, and not every model appears in a manufacturer's published catalog. Values may differ between sources and editions — always verify against the manufacturer's current documentation before design or purchase.Full disclaimer →