NACHI 7208 Bearing — Specifications, Dimensions & Cross-Reference
The NACHI 7208 is a angular contact ball bearing manufactured by NACHI. It belongs to the 7200 series and features dimensions of 40 × 80 × 18 mm (bore × OD × width). This bearing has a dynamic load rating of 30,700 N and a static load rating of 19,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 40 mm |
| Outside Diameter (D) | 80 mm |
| Width (B) | 18 mm |
| Weight | 0.356 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 30,700 N |
| Static Load Rating (C₀r) | 19,000 N |
| Limiting Speed (Grease) | 8,500 rpm |
| Limiting Speed (Oil) | 10,000 rpm |
Brand Cross-Reference — 7208 Equivalents
The following bearings from other manufacturers are interchangeable with the NACHI 7208. All share identical dimensions (40×80×18mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NACHI | NACHI 7208 ✦ | 30,700 | 19,000 |
| SKF | SKF 7208 | 30,700 | 19,000 |
| NTN | NTN 7208 | 30,700 | 19,000 |
| KOYO | KOYO 7208 | 30,700 | 19,000 |
| FAG | FAG 7208 | 30,700 | 19,000 |
| Timken | Timken 7208 | 30,700 | 19,000 |
| NSK | NSK 7208 | 30,700 | 19,000 |
| NTN | NTN 7208 | 30,700 | 19,000 |
| SKF | SKF 7208 | 30,700 | 19,000 |
Available Variants
The NACHI 7208 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NACHI 7208?
The NACHI 7208 has a bore diameter of 40mm, outside diameter of 80mm, and width of 18mm. It weighs 0.356kg.
What is the load capacity of the NACHI 7208?
The dynamic load rating (Cr) is 30,700 N and the static load rating (C₀r) is 19,000 N. The maximum recommended speed is 8,500 rpm with grease lubrication or 10,000 rpm with oil lubrication.
What bearings are equivalent to NACHI 7208?
The 7208 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×80×18mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.