The Koyo 6056ZZ 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 double shielded (ZZ), effective dust prevention while allowing grease replenishment variant. Koyo (JTEKT) Japan — OEM automotive bearings for Toyota, Honda, Japanese quality competitive pricing — 6 equivalent brands available under ISO designation 6056.
Koyo 6056ZZ
Deep Groove Ball Bearings — 280×420×65 mm — ISO 6056
Technical Specifications
Full specifications for Koyo 6056ZZ per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 6056 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| Koyo | 6056ZZ |
| fag | 6056-2Z |
| nsk | 6056ZZ |
| ntn | 6056ZZ |
| skf | 6056-2Z |
| zvl | 6056-2ZR |
| nachi | 6056ZZE |
| timken | 6056-2Z |
* 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 | 6056ZZ | 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 | 6056 | 280×420×65 | 270.5 | — | View |
| Koyo | 60562RS | 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 6056ZZ
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).
Need a Quote for Koyo 6056ZZ?
Engineers ready for bearing selection, cross-reference, and same-day quotation.