SKF 6406 Bearing — Specifications, Dimensions & Cross-Reference
The SKF 6406 is a deep groove ball bearing manufactured by SKF. It belongs to the 6400 series and features dimensions of 30 × 90 × 23 mm (bore × OD × width). This bearing has a dynamic load rating of 47,500 N and a static load rating of 24,500 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 30 mm |
| Outside Diameter (D) | 90 mm |
| Width (B) | 23 mm |
| Weight | 0.71 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 47,500 N |
| Static Load Rating (C₀r) | 24,500 N |
| Limiting Speed (Grease) | 8,000 rpm |
| Limiting Speed (Oil) | 10,000 rpm |
Brand Cross-Reference — 6406 Equivalents
The following bearings from other manufacturers are interchangeable with the SKF 6406. All share identical dimensions (30×90×23mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| SKF | SKF 6406 ✦ | 47,500 | 24,500 |
| Timken | Timken 6406 | 47,500 | 24,500 |
| NTN | NTN 6406 | 47,500 | 24,500 |
| NACHI | NACHI 6406 | 47,500 | 24,500 |
| KOYO | KOYO 6406 | 47,500 | 24,500 |
| FAG | FAG 6406 | 47,500 | 24,500 |
| Timken | Timken 6406 | 47,500 | 24,500 |
| NTN | NTN 6406 | 47,500 | 24,500 |
| NSK | NSK 6406 | 47,500 | 24,500 |
| SKF | SKF 6406 | 47,500 | 24,500 |
Available Variants
The SKF 6406 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the SKF 6406?
The SKF 6406 has a bore diameter of 30mm, outside diameter of 90mm, and width of 23mm. It weighs 0.71kg.
What is the load capacity of the SKF 6406?
The dynamic load rating (Cr) is 47,500 N and the static load rating (C₀r) is 24,500 N. The maximum recommended speed is 8,000 rpm with grease lubrication or 10,000 rpm with oil lubrication.
What bearings are equivalent to SKF 6406?
The 6406 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 30×90×23mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.