NTN 6803-C3 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 6803-C3 is a deep groove ball bearing with C3 clearance manufactured by NTN. It belongs to the 6800 series and features dimensions of 17 × 26 × 5 mm (bore × OD × width). This bearing has a dynamic load rating of 1,680 N and a static load rating of 1,020 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 17 mm |
| Outside Diameter (D) | 26 mm |
| Width (B) | 5 mm |
| Weight | 0.008 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 1,680 N |
| Static Load Rating (C₀r) | 1,020 N |
| Limiting Speed (Grease) | 22,000 rpm |
| Limiting Speed (Oil) | 30,000 rpm |
Brand Cross-Reference — 6803-C3 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 6803-C3. All share identical dimensions (17×26×5mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 6803-C3 ✦ | 1,680 | 1,020 |
| Timken | Timken 6803-C3 | 1,680 | 1,020 |
| SKF | SKF 6803-C3 | 1,680 | 1,020 |
| NTN | NTN 6803-C3 | 1,680 | 1,020 |
| NACHI | NACHI 6803-C3 | 1,680 | 1,020 |
| KOYO | KOYO 6803-C3 | 1,680 | 1,020 |
| FAG | FAG 6803-C3 | 1,680 | 1,020 |
| Timken | Timken 6803-C3 | 1,680 | 1,020 |
| NSK | NSK 6803-C3 | 1,680 | 1,020 |
| SKF | SKF 6803-C3 | 1,680 | 1,020 |
Available Variants
The NTN 6803 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 6803-C3?
The NTN 6803-C3 has a bore diameter of 17mm, outside diameter of 26mm, and width of 5mm. It weighs 0.008kg.
What is the load capacity of the NTN 6803-C3?
The dynamic load rating (Cr) is 1,680 N and the static load rating (C₀r) is 1,020 N. The maximum recommended speed is 22,000 rpm with grease lubrication or 30,000 rpm with oil lubrication.
What bearings are equivalent to NTN 6803-C3?
The 6803-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×26×5mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.