NTN 7301 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 7301 is a angular contact ball bearing manufactured by NTN. It belongs to the 7300 series and features dimensions of 12 × 37 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 9,750 N and a static load rating of 4,150 N, making it suitable for light-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 12 mm |
| Outside Diameter (D) | 37 mm |
| Width (B) | 12 mm |
| Weight | 0.058 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 9,750 N |
| Static Load Rating (C₀r) | 4,150 N |
| Limiting Speed (Grease) | 19,000 rpm |
| Limiting Speed (Oil) | 24,000 rpm |
Brand Cross-Reference — 7301 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 7301. All share identical dimensions (12×37×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 7301 ✦ | 9,750 | 4,150 |
| SKF | SKF 7301 | 9,750 | 4,150 |
| KOYO | KOYO 7301 | 9,750 | 4,150 |
| FAG | FAG 7301 | 9,750 | 4,150 |
| NACHI | NACHI 7301 | 9,750 | 4,150 |
| Timken | Timken 7301 | 9,750 | 4,150 |
| NSK | NSK 7301 | 9,750 | 4,150 |
| NTN | NTN 7301 | 9,750 | 4,150 |
| SKF | SKF 7301 | 9,750 | 4,150 |
Available Variants
The NTN 7301 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 7301?
The NTN 7301 has a bore diameter of 12mm, outside diameter of 37mm, and width of 12mm. It weighs 0.058kg.
What is the load capacity of the NTN 7301?
The dynamic load rating (Cr) is 9,750 N and the static load rating (C₀r) is 4,150 N. The maximum recommended speed is 19,000 rpm with grease lubrication or 24,000 rpm with oil lubrication.
What bearings are equivalent to NTN 7301?
The 7301 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 12×37×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.