NSK 7305 Bearing — Specifications, Dimensions & Cross-Reference
The NSK 7305 is a angular contact ball bearing manufactured by NSK. It belongs to the 7300 series and features dimensions of 25 × 62 × 17 mm (bore × OD × width). This bearing has a dynamic load rating of 23,400 N and a static load rating of 12,500 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) | 23,400 N |
| Static Load Rating (C₀r) | 12,500 N |
| Limiting Speed (Grease) | 11,000 rpm |
| Limiting Speed (Oil) | 13,000 rpm |
Brand Cross-Reference — 7305 Equivalents
The following bearings from other manufacturers are interchangeable with the NSK 7305. All share identical dimensions (25×62×17mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NSK | NSK 7305 ✦ | 23,400 | 12,500 |
| SKF | SKF 7305 | 23,400 | 12,500 |
| NTN | NTN 7305 | 23,400 | 12,500 |
| KOYO | KOYO 7305 | 23,400 | 12,500 |
| FAG | FAG 7305 | 23,400 | 12,500 |
| NACHI | NACHI 7305 | 23,400 | 12,500 |
| Timken | Timken 7305 | 23,400 | 12,500 |
| NTN | NTN 7305 | 23,400 | 12,500 |
| SKF | SKF 7305 | 23,400 | 12,500 |
Available Variants
The NSK 7305 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NSK 7305?
The NSK 7305 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 7305?
The dynamic load rating (Cr) is 23,400 N and the static load rating (C₀r) is 12,500 N. The maximum recommended speed is 11,000 rpm with grease lubrication or 13,000 rpm with oil lubrication.
What bearings are equivalent to NSK 7305?
The 7305 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.