SKF 7306-NR Bearing — Specifications, Dimensions & Cross-Reference
The SKF 7306-NR is a angular contact ball bearing with snap ring groove manufactured by SKF. It belongs to the 7300 series and features dimensions of 30 × 72 × 19 mm (bore × OD × width). This bearing has a dynamic load rating of 29,600 N and a static load rating of 16,600 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 30 mm |
| Outside Diameter (D) | 72 mm |
| Width (B) | 19 mm |
| Weight | 0.327 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 29,600 N |
| Static Load Rating (C₀r) | 16,600 N |
| Limiting Speed (Grease) | 9,000 rpm |
| Limiting Speed (Oil) | 11,000 rpm |
Brand Cross-Reference — 7306-NR Equivalents
The following bearings from other manufacturers are interchangeable with the SKF 7306-NR. All share identical dimensions (30×72×19mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| SKF | SKF 7306-NR ✦ | 29,600 | 16,600 |
| SKF | SKF 7306-NR | 29,600 | 16,600 |
| NTN | NTN 7306-NR | 29,600 | 16,600 |
| KOYO | KOYO 7306-NR | 29,600 | 16,600 |
| FAG | FAG 7306-NR | 29,600 | 16,600 |
| NACHI | NACHI 7306-NR | 29,600 | 16,600 |
| Timken | Timken 7306-NR | 29,600 | 16,600 |
| NSK | NSK 7306-NR | 29,600 | 16,600 |
| NTN | NTN 7306-NR | 29,600 | 16,600 |
Available Variants
The SKF 7306 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the SKF 7306-NR?
The SKF 7306-NR has a bore diameter of 30mm, outside diameter of 72mm, and width of 19mm. It weighs 0.327kg.
What is the load capacity of the SKF 7306-NR?
The dynamic load rating (Cr) is 29,600 N and the static load rating (C₀r) is 16,600 N. The maximum recommended speed is 9,000 rpm with grease lubrication or 11,000 rpm with oil lubrication.
What bearings are equivalent to SKF 7306-NR?
The 7306-NR is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 30×72×19mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.