NTN 7203 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 7203 is a angular contact ball bearing manufactured by NTN. It belongs to the 7200 series and features dimensions of 17 × 40 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 9,560 N and a static load rating of 4,750 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 17 mm |
| Outside Diameter (D) | 40 mm |
| Width (B) | 12 mm |
| Weight | 0.065 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 9,560 N |
| Static Load Rating (C₀r) | 4,750 N |
| Limiting Speed (Grease) | 18,000 rpm |
| Limiting Speed (Oil) | 22,000 rpm |
Brand Cross-Reference — 7203 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 7203. All share identical dimensions (17×40×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 7203 ✦ | 9,560 | 4,750 |
| Timken | Timken 7203 | 9,560 | 4,750 |
| SKF | SKF 7203 | 9,560 | 4,750 |
| KOYO | KOYO 7203 | 9,560 | 4,750 |
| FAG | FAG 7203 | 9,560 | 4,750 |
| NACHI | NACHI 7203 | 9,560 | 4,750 |
| Timken | Timken 7203 | 9,560 | 4,750 |
| NSK | NSK 7203 | 9,560 | 4,750 |
| NTN | NTN 7203 | 9,560 | 4,750 |
| SKF | SKF 7203 | 9,560 | 4,750 |
Available Variants
The NTN 7203 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 7203?
The NTN 7203 has a bore diameter of 17mm, outside diameter of 40mm, and width of 12mm. It weighs 0.065kg.
What is the load capacity of the NTN 7203?
The dynamic load rating (Cr) is 9,560 N and the static load rating (C₀r) is 4,750 N. The maximum recommended speed is 18,000 rpm with grease lubrication or 22,000 rpm with oil lubrication.
What bearings are equivalent to NTN 7203?
The 7203 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×40×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.