NSK 6203 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 6203 is a deep groove ball bearing manufactured by NSK. It belongs to the 6200 series and features dimensions of 17 × 40 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 9,500 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) | 9,500 N |
| Static Load Rating (C₀r) | 4,750 N |
| Limiting Speed (Grease) | 17,000 rpm |
| Limiting Speed (Oil) | 20,000 rpm |
Brand Cross-Reference — 6203 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 6203. All share identical dimensions (17×40×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 6203 ✦ | 9,500 | 4,750 |
| NACHI | NACHI 6203 | 9,500 | 4,750 |
| KOYO | KOYO 6203 | 9,500 | 4,750 |
| Timken | Timken 6203 | 9,500 | 4,750 |
| FAG | FAG 6203 | 9,500 | 4,750 |
| NTN | NTN 6203 | 9,500 | 4,750 |
| SKF | SKF 6203 | 9,500 | 4,750 |
Available Variants
The NSK 6203 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 6203?
The NSK 6203 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 NSK 6203?
The dynamic load rating (Cr) is 9,500 N and the static load rating (C₀r) is 4,750 N. The maximum recommended speed is 17,000 rpm with grease lubrication or 20,000 rpm with oil lubrication.
What bearings are equivalent to NSK 6203?
The 6203 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.