The Koyo 6056 is a extra-large size deep groove ball bearings with ISO dimensions 280×420×65 mm. Bearings in the 280mm bore range are commonly used in HV motors, turbines, generators, boiler cooling fans (over 200kW range). This is an open type, requires periodic lubrication, suitable for clean environments variant. Koyo (JTEKT) Japan — OEM automotive bearings for Toyota, Honda, Japanese quality competitive pricing — 6 equivalent brands available under ISO designation 6056.
Koyo 6056
Deep Groove Ball Bearings — 280×420×65 mm — ISO 6056
Technical Specifications
Full specifications for Koyo 6056 per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 6056 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| Koyo | 6056 |
| fag | 6056 |
| nsk | 6056 |
| ntn | 6056 |
| skf | 6056 |
| zvl | 6056 |
| nachi | 6056 |
| timken | 6056 |
* C/C₀ may vary ±5% across manufacturers.
Compare 6056 Across Brands
Same interchangeable dimensions — different load ratings and pricing.
| Brand | SKU | d×D×B | C (kN) | C₀ (kN) | |
|---|---|---|---|---|---|
| Koyo | 6056 | 280×420×65 | 270.5 | 294 | Current |
| FAG | 6056 | 280×420×65 | 281.5 | — | View |
| FAG | 6056-2RSR | 280×420×65 | 281.5 | — | View |
| FAG | 6056-2Z | 280×420×65 | 281.5 | — | View |
| Koyo | 60562RS | 280×420×65 | 270.5 | — | View |
| Koyo | 6056ZZ | 280×420×65 | 270.5 | — | View |
| NACHI | 6056 | 280×420×65 | 273.2 | — | View |
| NACHI | 60562NSLE | 280×420×65 | 273.2 | — | View |
| NACHI | 6056ZZE | 280×420×65 | 273.2 | — | View |
FAQ — Koyo 6056
Quick answers to common questions.
Common Applications
Deep Groove Ball Bearings with 280mm bore diameter are commonly used in HV motors, turbines, generators, boiler cooling fans (over 200kW range).
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