The NSK 6068ZZ is a extra-large size deep groove ball bearings with ISO dimensions 340×520×82 mm. Bearings in the 340mm 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. NSK Japan — precision bearing specialist, CNC spindles and high-speed bearings — 6 equivalent brands available under ISO designation 6068.
NSK 6068ZZ
Deep Groove Ball Bearings — 340×520×82 mm — ISO 6068
Technical Specifications
Full specifications for NSK 6068ZZ per OEM catalog.
* Tolerances per ISO. Specifications per OEM catalog.
Cross-Reference — Equivalent Codes
Same ISO 6068 — interchangeable dimensions.
| Brand | Part Number |
|---|---|
| NSK | 6068ZZ |
| fag | 6068-2Z |
| ntn | 6068ZZ |
| skf | 6068-2Z |
| zvl | 6068-2ZR |
| koyo | 6068ZZ |
| nachi | 6068ZZE |
| timken | 6068-2Z |
* C/C₀ may vary ±5% across manufacturers.
Compare 6068 Across Brands
Same interchangeable dimensions — different load ratings and pricing.
FAQ — NSK 6068ZZ
Quick answers to common questions.
Common Applications
Deep Groove Ball Bearings with 340mm bore diameter are commonly used in HV motors, turbines, generators, boiler cooling fans (over 200kW range).
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