NTN 6408-2RS Bearing — Specifications, Dimensions & Cross-Reference
The NTN 6408-2RS is a deep groove ball bearing double rubber sealed manufactured by NTN. It belongs to the 6400 series and features dimensions of 40 × 110 × 27 mm (bore × OD × width). This bearing has a dynamic load rating of 63,700 N and a static load rating of 34,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 40 mm |
| Outside Diameter (D) | 110 mm |
| Width (B) | 27 mm |
| Weight | 1.15 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 63,700 N |
| Static Load Rating (C₀r) | 34,000 N |
| Limiting Speed (Grease) | 6,300 rpm |
| Limiting Speed (Oil) | 8,000 rpm |
Brand Cross-Reference — 6408-2RS Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 6408-2RS. All share identical dimensions (40×110×27mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 6408-2RS ✦ | 63,700 | 34,000 |
| Timken | Timken 6408-2RS | 63,700 | 34,000 |
| SKF | SKF 6408-2RS | 63,700 | 34,000 |
| NTN | NTN 6408-2RS | 63,700 | 34,000 |
| NACHI | NACHI 6408-2RS | 63,700 | 34,000 |
| KOYO | KOYO 6408-2RS | 63,700 | 34,000 |
| FAG | FAG 6408-2RS | 63,700 | 34,000 |
| Timken | Timken 6408-2RS | 63,700 | 34,000 |
| NSK | NSK 6408-2RS | 63,700 | 34,000 |
| SKF | SKF 6408-2RS | 63,700 | 34,000 |
Available Variants
The NTN 6408 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 6408-2RS?
The NTN 6408-2RS has a bore diameter of 40mm, outside diameter of 110mm, and width of 27mm. It weighs 1.15kg.
What is the load capacity of the NTN 6408-2RS?
The dynamic load rating (Cr) is 63,700 N and the static load rating (C₀r) is 34,000 N. The maximum recommended speed is 6,300 rpm with grease lubrication or 8,000 rpm with oil lubrication.
What bearings are equivalent to NTN 6408-2RS?
The 6408-2RS is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 40×110×27mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.