NTN 6908-2Z Bearing — Specifications, Dimensions & Cross-Reference
The NTN 6908-2Z is a deep groove ball bearing double metal shielded manufactured by NTN. It belongs to the 6900 series and features dimensions of 40 × 62 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 10,100 N and a static load rating of 6,950 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 40 mm |
| Outside Diameter (D) | 62 mm |
| Width (B) | 12 mm |
| Weight | 0.080 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 10,100 N |
| Static Load Rating (C₀r) | 6,950 N |
| Limiting Speed (Grease) | 10,000 rpm |
| Limiting Speed (Oil) | 14,000 rpm |
Brand Cross-Reference — 6908-2Z Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 6908-2Z. All share identical dimensions (40×62×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 6908-2Z ✦ | 10,100 | 6,950 |
| NTN | NTN 6908-2Z | 10,100 | 6,950 |
| KOYO | KOYO 6908-2Z | 10,100 | 6,950 |
| FAG | FAG 6908-2Z | 10,100 | 6,950 |
| NACHI | NACHI 6908-2Z | 10,100 | 6,950 |
| Timken | Timken 6908-2Z | 10,100 | 6,950 |
| NSK | NSK 6908-2Z | 10,100 | 6,950 |
| SKF | SKF 6908-2Z | 10,100 | 6,950 |
Available Variants
The NTN 6908 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 6908-2Z?
The NTN 6908-2Z has a bore diameter of 40mm, outside diameter of 62mm, and width of 12mm. It weighs 0.080kg.
What is the load capacity of the NTN 6908-2Z?
The dynamic load rating (Cr) is 10,100 N and the static load rating (C₀r) is 6,950 N. The maximum recommended speed is 10,000 rpm with grease lubrication or 14,000 rpm with oil lubrication.
What bearings are equivalent to NTN 6908-2Z?
The 6908-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×62×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.