KOYO 6310 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 6310 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6300 series and features dimensions of 50 × 110 × 27 mm (bore × OD × width). This bearing has a dynamic load rating of 61,800 N and a static load rating of 38,000 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) | 61,800 N |
| Static Load Rating (C₀r) | 38,000 N |
| Limiting Speed (Grease) | 6,300 rpm |
| Limiting Speed (Oil) | 7,500 rpm |
Brand Cross-Reference — 6310 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 6310. All share identical dimensions (50×110×27mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 6310 ✦ | 61,800 | 38,000 |
| Timken | Timken 6310 | 61,800 | 38,000 |
| SKF | SKF 6310 | 61,800 | 38,000 |
| NTN | NTN 6310 | 61,800 | 38,000 |
| NACHI | NACHI 6310 | 61,800 | 38,000 |
| FAG | FAG 6310 | 61,800 | 38,000 |
| Timken | Timken 6310 | 61,800 | 38,000 |
| NSK | NSK 6310 | 61,800 | 38,000 |
| NTN | NTN 6310 | 61,800 | 38,000 |
| SKF | SKF 6310 | 61,800 | 38,000 |
Available Variants
The KOYO 6310 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 6310?
The KOYO 6310 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 KOYO 6310?
The dynamic load rating (Cr) is 61,800 N and the static load rating (C₀r) is 38,000 N. The maximum recommended speed is 6,300 rpm with grease lubrication or 7,500 rpm with oil lubrication.
What bearings are equivalent to KOYO 6310?
The 6310 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.