NSK 6403 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 6403 is a deep groove ball bearing manufactured by NSK. It belongs to the 6400 series and features dimensions of 17 × 62 × 17 mm (bore × OD × width). This bearing has a dynamic load rating of 22,700 N and a static load rating of 10,800 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 17 mm |
| Outside Diameter (D) | 62 mm |
| Width (B) | 17 mm |
| Weight | 0.268 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 22,700 N |
| Static Load Rating (C₀r) | 10,800 N |
| Limiting Speed (Grease) | 11,000 rpm |
| Limiting Speed (Oil) | 15,000 rpm |
Brand Cross-Reference — 6403 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 6403. All share identical dimensions (17×62×17mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 6403 ✦ | 22,700 | 10,800 |
| SKF | SKF 6403 | 22,700 | 10,800 |
| NTN | NTN 6403 | 22,700 | 10,800 |
| NACHI | NACHI 6403 | 22,700 | 10,800 |
| KOYO | KOYO 6403 | 22,700 | 10,800 |
| FAG | FAG 6403 | 22,700 | 10,800 |
| Timken | Timken 6403 | 22,700 | 10,800 |
| NTN | NTN 6403 | 22,700 | 10,800 |
| SKF | SKF 6403 | 22,700 | 10,800 |
Available Variants
The NSK 6403 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 6403?
The NSK 6403 has a bore diameter of 17mm, outside diameter of 62mm, and width of 17mm. It weighs 0.268kg.
What is the load capacity of the NSK 6403?
The dynamic load rating (Cr) is 22,700 N and the static load rating (C₀r) is 10,800 N. The maximum recommended speed is 11,000 rpm with grease lubrication or 15,000 rpm with oil lubrication.
What bearings are equivalent to NSK 6403?
The 6403 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 17×62×17mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.