KOYO 6324-NR Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 6324-NR is a deep groove ball bearing with snap ring groove manufactured by KOYO. It belongs to the 6300 series and features dimensions of 120 × 260 × 55 mm (bore × OD × width). This bearing has a dynamic load rating of 208,000 N and a static load rating of 186,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 120 mm |
| Outside Diameter (D) | 260 mm |
| Width (B) | 55 mm |
| Weight | 9.800 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 208,000 N |
| Static Load Rating (C₀r) | 186,000 N |
| Limiting Speed (Grease) | 2,400 rpm |
| Limiting Speed (Oil) | 3,000 rpm |
Brand Cross-Reference — 6324-NR Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 6324-NR. All share identical dimensions (120×260×55mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 6324-NR ✦ | 208,000 | 186,000 |
| Timken | Timken 6324-NR | 208,000 | 186,000 |
| SKF | SKF 6324-NR | 208,000 | 186,000 |
| NTN | NTN 6324-NR | 208,000 | 186,000 |
| NACHI | NACHI 6324-NR | 208,000 | 186,000 |
| FAG | FAG 6324-NR | 208,000 | 186,000 |
| Timken | Timken 6324-NR | 208,000 | 186,000 |
| NSK | NSK 6324-NR | 208,000 | 186,000 |
| NTN | NTN 6324-NR | 208,000 | 186,000 |
| SKF | SKF 6324-NR | 208,000 | 186,000 |
Available Variants
The KOYO 6324 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 6324-NR?
The KOYO 6324-NR has a bore diameter of 120mm, outside diameter of 260mm, and width of 55mm. It weighs 9.800kg.
What is the load capacity of the KOYO 6324-NR?
The dynamic load rating (Cr) is 208,000 N and the static load rating (C₀r) is 186,000 N. The maximum recommended speed is 2,400 rpm with grease lubrication or 3,000 rpm with oil lubrication.
What bearings are equivalent to KOYO 6324-NR?
The 6324-NR is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 120×260×55mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.