NACHI 7306 Bearing — Specifications, Dimensions & Cross-Reference
The NACHI 7306 is a angular contact ball bearing manufactured by NACHI. 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 Equivalents
The following bearings from other manufacturers are interchangeable with the NACHI 7306. All share identical dimensions (30×72×19mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NACHI | NACHI 7306 ✦ | 29,600 | 16,600 |
| SKF | SKF 7306 | 29,600 | 16,600 |
| NTN | NTN 7306 | 29,600 | 16,600 |
| KOYO | KOYO 7306 | 29,600 | 16,600 |
| FAG | FAG 7306 | 29,600 | 16,600 |
| Timken | Timken 7306 | 29,600 | 16,600 |
| NTN | NTN 7306 | 29,600 | 16,600 |
| NSK | NSK 7306 | 29,600 | 16,600 |
| SKF | SKF 7306 | 29,600 | 16,600 |
Available Variants
The NACHI 7306 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NACHI 7306?
The NACHI 7306 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 NACHI 7306?
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 NACHI 7306?
The 7306 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.