NSK 6305 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 6305 is a deep groove ball bearing manufactured by NSK. It belongs to the 6300 series and features dimensions of 25 × 62 × 17 mm (bore × OD × width). This bearing has a dynamic load rating of 22,500 N and a static load rating of 11,600 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 25 mm |
| Outside Diameter (D) | 62 mm |
| Width (B) | 17 mm |
| Weight | 0.213 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 22,500 N |
| Static Load Rating (C₀r) | 11,600 N |
| Limiting Speed (Grease) | 11,000 rpm |
| Limiting Speed (Oil) | 14,000 rpm |
Brand Cross-Reference — 6305 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 6305. All share identical dimensions (25×62×17mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 6305 ✦ | 22,500 | 11,600 |
| Timken | Timken 6305 | 22,500 | 11,600 |
| SKF | SKF 6305 | 22,500 | 11,600 |
| NTN | NTN 6305 | 22,500 | 11,600 |
| NACHI | NACHI 6305 | 22,500 | 11,600 |
| KOYO | KOYO 6305 | 22,500 | 11,600 |
| FAG | FAG 6305 | 22,500 | 11,600 |
| Timken | Timken 6305 | 22,500 | 11,600 |
| NTN | NTN 6305 | 22,500 | 11,600 |
| SKF | SKF 6305 | 22,500 | 11,600 |
Available Variants
The NSK 6305 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 6305?
The NSK 6305 has a bore diameter of 25mm, outside diameter of 62mm, and width of 17mm. It weighs 0.213kg.
What is the load capacity of the NSK 6305?
The dynamic load rating (Cr) is 22,500 N and the static load rating (C₀r) is 11,600 N. The maximum recommended speed is 11,000 rpm with grease lubrication or 14,000 rpm with oil lubrication.
What bearings are equivalent to NSK 6305?
The 6305 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 25×62×17mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.