NSK 6004 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 6004 is a deep groove ball bearing manufactured by NSK. It belongs to the 6000 series and features dimensions of 20 × 42 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 9,380 N and a static load rating of 5,000 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 20 mm |
| Outside Diameter (D) | 42 mm |
| Width (B) | 12 mm |
| Weight | 0.067 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 9,380 N |
| Static Load Rating (C₀r) | 5,000 N |
| Limiting Speed (Grease) | 17,000 rpm |
| Limiting Speed (Oil) | 21,000 rpm |
Brand Cross-Reference — 6004 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 6004. All share identical dimensions (20×42×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 6004 ✦ | 9,380 | 5,000 |
| NACHI | NACHI 6004 | 9,380 | 5,000 |
| KOYO | KOYO 6004 | 9,380 | 5,000 |
| Timken | Timken 6004 | 9,380 | 5,000 |
| FAG | FAG 6004 | 9,380 | 5,000 |
| NTN | NTN 6004 | 9,380 | 5,000 |
| SKF | SKF 6004 | 9,380 | 5,000 |
Available Variants
The NSK 6004 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 6004?
The NSK 6004 has a bore diameter of 20mm, outside diameter of 42mm, and width of 12mm. It weighs 0.067kg.
What is the load capacity of the NSK 6004?
The dynamic load rating (Cr) is 9,380 N and the static load rating (C₀r) is 5,000 N. The maximum recommended speed is 17,000 rpm with grease lubrication or 21,000 rpm with oil lubrication.
What bearings are equivalent to NSK 6004?
The 6004 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×42×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.