KOYO 6328 Bearing — Specifications, Dimensions & Cross-Reference
The KOYO 6328 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6300 series and features dimensions of 140 × 300 × 62 mm (bore × OD × width). This bearing has a dynamic load rating of 270,000 N and a static load rating of 255,000 N, making it suitable for heavy-duty applications.
Technical Specifications
| Dimensions | |
|---|---|
| Bore Diameter (d) | 140 mm |
| Outside Diameter (D) | 300 mm |
| Width (B) | 62 mm |
| Weight | 14.500 kg |
| Performance | |
|---|---|
| Dynamic Load Rating (Cr) | 270,000 N |
| Static Load Rating (C₀r) | 255,000 N |
| Limiting Speed (Grease) | 2,000 rpm |
| Limiting Speed (Oil) | 2,600 rpm |
Brand Cross-Reference — 6328 Equivalents
The following bearings from other manufacturers are interchangeable with the KOYO 6328. All share identical dimensions (140×300×62mm) and comparable load ratings:
| Brand | Part Number | Dynamic Load (N) | Static Load (N) |
|---|---|---|---|
| KOYO | KOYO 6328 ✦ | 270,000 | 255,000 |
| Timken | Timken 6328 | 270,000 | 255,000 |
| SKF | SKF 6328 | 270,000 | 255,000 |
| NTN | NTN 6328 | 270,000 | 255,000 |
| NACHI | NACHI 6328 | 270,000 | 255,000 |
| FAG | FAG 6328 | 270,000 | 255,000 |
| Timken | Timken 6328 | 270,000 | 255,000 |
| NSK | NSK 6328 | 270,000 | 255,000 |
| NTN | NTN 6328 | 270,000 | 255,000 |
| SKF | SKF 6328 | 270,000 | 255,000 |
Available Variants
The KOYO 6328 base bearing is available in these configurations:
Frequently Asked Questions
What are the dimensions of the KOYO 6328?
The KOYO 6328 has a bore diameter of 140mm, outside diameter of 300mm, and width of 62mm. It weighs 14.500kg.
What is the load capacity of the KOYO 6328?
The dynamic load rating (Cr) is 270,000 N and the static load rating (C₀r) is 255,000 N. The maximum recommended speed is 2,000 rpm with grease lubrication or 2,600 rpm with oil lubrication.
What bearings are equivalent to KOYO 6328?
The 6328 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 140×300×62mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.