FAG 6304 Bearing — Specifications, Dimensions & Cross-Reference
The FAG 6304 is a deep groove ball bearing manufactured by FAG. 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 Equivalents
The following bearings from other manufacturers are interchangeable with the FAG 6304. All share identical dimensions (20×52×15mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| FAG | FAG 6304 ✦ | 15,900 | 7,800 |
| Timken | Timken 6304 | 15,900 | 7,800 |
| SKF | SKF 6304 | 15,900 | 7,800 |
| NTN | NTN 6304 | 15,900 | 7,800 |
| NACHI | NACHI 6304 | 15,900 | 7,800 |
| KOYO | KOYO 6304 | 15,900 | 7,800 |
| Timken | Timken 6304 | 15,900 | 7,800 |
| NSK | NSK 6304 | 15,900 | 7,800 |
| NTN | NTN 6304 | 15,900 | 7,800 |
| SKF | SKF 6304 | 15,900 | 7,800 |
Available Variants
The FAG 6304 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the FAG 6304?
The FAG 6304 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 FAG 6304?
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 FAG 6304?
The 6304 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.