SKF 7308 Bearing — Specifications, Dimensions & Cross-Reference
The SKF 7308 is a angular contact ball bearing manufactured by SKF. It belongs to the 7300 series and features dimensions of 40 × 90 × 23 mm (bore × OD × width). This bearing has a dynamic load rating of 43,600 N and a static load rating of 26,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 40 mm |
| Outside Diameter (D) | 90 mm |
| Width (B) | 23 mm |
| Weight | 0.693 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 43,600 N |
| Static Load Rating (C₀r) | 26,000 N |
| Limiting Speed (Grease) | 7,000 rpm |
| Limiting Speed (Oil) | 8,500 rpm |
Brand Cross-Reference — 7308 Equivalents
The following bearings from other manufacturers are interchangeable with the SKF 7308. All share identical dimensions (40×90×23mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| SKF | SKF 7308 ✦ | 43,600 | 26,000 |
| SKF | SKF 7308 | 43,600 | 26,000 |
| NTN | NTN 7308 | 43,600 | 26,000 |
| KOYO | KOYO 7308 | 43,600 | 26,000 |
| FAG | FAG 7308 | 43,600 | 26,000 |
| NACHI | NACHI 7308 | 43,600 | 26,000 |
| Timken | Timken 7308 | 43,600 | 26,000 |
| NSK | NSK 7308 | 43,600 | 26,000 |
| NTN | NTN 7308 | 43,600 | 26,000 |
Available Variants
The SKF 7308 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the SKF 7308?
The SKF 7308 has a bore diameter of 40mm, outside diameter of 90mm, and width of 23mm. It weighs 0.693kg.
What is the load capacity of the SKF 7308?
The dynamic load rating (Cr) is 43,600 N and the static load rating (C₀r) is 26,000 N. The maximum recommended speed is 7,000 rpm with grease lubrication or 8,500 rpm with oil lubrication.
What bearings are equivalent to SKF 7308?
The 7308 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×90×23mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.