NTN 6910 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 6910 is a deep groove ball bearing manufactured by NTN. It belongs to the 6900 series and features dimensions of 50 × 72 × 12 mm (bore × OD × width). This bearing has a dynamic load rating of 11,200 N and a static load rating of 8,500 N, making it suitable for medium-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 50 mm |
| Outside Diameter (D) | 72 mm |
| Width (B) | 12 mm |
| Weight | 0.100 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 11,200 N |
| Static Load Rating (C₀r) | 8,500 N |
| Limiting Speed (Grease) | 8,500 rpm |
| Limiting Speed (Oil) | 12,000 rpm |
Brand Cross-Reference — 6910 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 6910. All share identical dimensions (50×72×12mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 6910 ✦ | 11,200 | 8,500 |
| Timken | Timken 6910 | 11,200 | 8,500 |
| SKF | SKF 6910 | 11,200 | 8,500 |
| KOYO | KOYO 6910 | 11,200 | 8,500 |
| FAG | FAG 6910 | 11,200 | 8,500 |
| NACHI | NACHI 6910 | 11,200 | 8,500 |
| Timken | Timken 6910 | 11,200 | 8,500 |
| NSK | NSK 6910 | 11,200 | 8,500 |
| NTN | NTN 6910 | 11,200 | 8,500 |
| SKF | SKF 6910 | 11,200 | 8,500 |
Available Variants
The NTN 6910 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 6910?
The NTN 6910 has a bore diameter of 50mm, outside diameter of 72mm, and width of 12mm. It weighs 0.100kg.
What is the load capacity of the NTN 6910?
The dynamic load rating (Cr) is 11,200 N and the static load rating (C₀r) is 8,500 N. The maximum recommended speed is 8,500 rpm with grease lubrication or 12,000 rpm with oil lubrication.
What bearings are equivalent to NTN 6910?
The 6910 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 50×72×12mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.