SKF 6304-2Z Bearing — Specifications, Dimensions & Cross-Reference
The SKF 6304-2Z is a deep groove ball bearing double metal shielded manufactured by SKF. It belongs to the 6300 series and features dimensions of 20 × 52 × 15 mm (bore × OD × width). This bearing has a dynamic load rating of 15,900 N and a static load rating of 7,800 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 20 mm |
| Outside Diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Weight | 0.138 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 15,900 N |
| Static Load Rating (C₀r) | 7,800 N |
| Limiting Speed (Grease) | 13,000 rpm |
| Limiting Speed (Oil) | 16,000 rpm |
Brand Cross-Reference — 6304-2Z Equivalents
The following bearings from other manufacturers are interchangeable with the SKF 6304-2Z. All share identical dimensions (20×52×15mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| SKF | SKF 6304-2Z ✦ | 15,900 | 7,800 |
| Timken | Timken 6304-2Z | 15,900 | 7,800 |
| SKF | SKF 6304-2Z | 15,900 | 7,800 |
| NTN | NTN 6304-2Z | 15,900 | 7,800 |
| NACHI | NACHI 6304-2Z | 15,900 | 7,800 |
| KOYO | KOYO 6304-2Z | 15,900 | 7,800 |
| FAG | FAG 6304-2Z | 15,900 | 7,800 |
| Timken | Timken 6304-2Z | 15,900 | 7,800 |
| NSK | NSK 6304-2Z | 15,900 | 7,800 |
| NTN | NTN 6304-2Z | 15,900 | 7,800 |
Available Variants
The SKF 6304 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the SKF 6304-2Z?
The SKF 6304-2Z has a bore diameter of 20mm, outside diameter of 52mm, and width of 15mm. It weighs 0.138kg.
What is the load capacity of the SKF 6304-2Z?
The dynamic load rating (Cr) is 15,900 N and the static load rating (C₀r) is 7,800 N. The maximum recommended speed is 13,000 rpm with grease lubrication or 16,000 rpm with oil lubrication.
What bearings are equivalent to SKF 6304-2Z?
The 6304-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×52×15mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.