NTN 7305-2Z Bearing — Specifications, Dimensions & Cross-Reference
The NTN 7305-2Z is a angular contact ball bearing double metal shielded manufactured by NTN. 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 — 7305-2Z Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 7305-2Z. All share identical dimensions (25×62×17mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 7305-2Z ✦ | 23,400 | 12,500 |
| SKF | SKF 7305-2Z | 23,400 | 12,500 |
| NTN | NTN 7305-2Z | 23,400 | 12,500 |
| KOYO | KOYO 7305-2Z | 23,400 | 12,500 |
| FAG | FAG 7305-2Z | 23,400 | 12,500 |
| NACHI | NACHI 7305-2Z | 23,400 | 12,500 |
| Timken | Timken 7305-2Z | 23,400 | 12,500 |
| NSK | NSK 7305-2Z | 23,400 | 12,500 |
| SKF | SKF 7305-2Z | 23,400 | 12,500 |
Available Variants
The NTN 7305 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 7305-2Z?
The NTN 7305-2Z 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 NTN 7305-2Z?
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 NTN 7305-2Z?
The 7305-2Z 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.