NTN 7310-2RS-C3 Bearing — Specifications, Dimensions & Cross-Reference
The NTN 7310-2RS-C3 is a angular contact ball bearing double rubber sealed manufactured by NTN. It belongs to the 7300 series and features dimensions of 50 × 110 × 27 mm (bore × OD × width). This bearing has a dynamic load rating of 63,700 N and a static load rating of 40,500 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 50 mm |
| Outside Diameter (D) | 110 mm |
| Width (B) | 27 mm |
| Weight | 1.056 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 63,700 N |
| Static Load Rating (C₀r) | 40,500 N |
| Limiting Speed (Grease) | 5,600 rpm |
| Limiting Speed (Oil) | 6,700 rpm |
Brand Cross-Reference — 7310-2RS-C3 Equivalents
The following bearings from other manufacturers are interchangeable with the NTN 7310-2RS-C3. All share identical dimensions (50×110×27mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| NTN | NTN 7310-2RS-C3 ✦ | 63,700 | 40,500 |
| SKF | SKF 7310-2RS-C3 | 63,700 | 40,500 |
| KOYO | KOYO 7310-2RS-C3 | 63,700 | 40,500 |
| FAG | FAG 7310-2RS-C3 | 63,700 | 40,500 |
| NACHI | NACHI 7310-2RS-C3 | 63,700 | 40,500 |
| Timken | Timken 7310-2RS-C3 | 63,700 | 40,500 |
| NSK | NSK 7310-2RS-C3 | 63,700 | 40,500 |
| NTN | NTN 7310-2RS-C3 | 63,700 | 40,500 |
| SKF | SKF 7310-2RS-C3 | 63,700 | 40,500 |
Available Variants
The NTN 7310 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the NTN 7310-2RS-C3?
The NTN 7310-2RS-C3 has a bore diameter of 50mm, outside diameter of 110mm, and width of 27mm. It weighs 1.056kg.
What is the load capacity of the NTN 7310-2RS-C3?
The dynamic load rating (Cr) is 63,700 N and the static load rating (C₀r) is 40,500 N. The maximum recommended speed is 5,600 rpm with grease lubrication or 6,700 rpm with oil lubrication.
What bearings are equivalent to NTN 7310-2RS-C3?
The 7310-2RS-C3 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 50×110×27mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.