NTN 6211 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 6211 is a deep groove ball bearing manufactured by NTN. It belongs to the 6200 series and features dimensions of 55 × 100 × 21 mm (bore × OD × width). This bearing has a dynamic load rating of 43,600 N and a static load rating of 28,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 55 mm |
| Outside Diameter (D) | 100 mm |
| Width (B) | 21 mm |
| Weight | 0.580 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 43,600 N |
| Static Load Rating (C₀r) | 28,000 N |
| Limiting Speed (Grease) | 6,000 rpm |
| Limiting Speed (Oil) | 7,500 rpm |
Brand Cross-Reference — 6211 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 6211. All share identical dimensions (55×100×21mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 6211 ✦ | 43,600 | 28,000 |
| NACHI | NACHI 6211 | 43,600 | 28,000 |
| KOYO | KOYO 6211 | 43,600 | 28,000 |
| Timken | Timken 6211 | 43,600 | 28,000 |
| FAG | FAG 6211 | 43,600 | 28,000 |
| NSK | NSK 6211 | 43,600 | 28,000 |
| SKF | SKF 6211 | 43,600 | 28,000 |
Available Variants
The NTN 6211 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 6211?
The NTN 6211 has a bore diameter of 55mm, outside diameter of 100mm, and width of 21mm. It weighs 0.580kg.
What is the load capacity of the NTN 6211?
The dynamic load rating (Cr) is 43,600 N and the static load rating (C₀r) is 28,000 N. The maximum recommended speed is 6,000 rpm with grease lubrication or 7,500 rpm with oil lubrication.
What bearings are equivalent to NTN 6211?
The 6211 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 55×100×21mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.