6340 Deep Groove Ball Bearing (200x420x80mm)
How to read this designation →
Bearing dimensions and basic technical information.
Schematic only — for the actual construction, refer to each manufacturer's information.
Manufacturer Ratings
Load-rating symbols are printed as each manufacturer writes them in its own catalogue, so the same quantity can carry a different symbol from brand to brand.
| Brand | Dynamic Load Rating | Static Load Rating | Fatigue Load Limit |
|---|---|---|---|
| NSK 6340 | 415 kN | 445 kN | — |
| NTN 6340 | 455 kN | 500 kN | 22.3 kN |
| Timken 6340 | 380 kN | 445 kN | — |
Speed Ratings
Speed limits depend on sealing and lubrication, and definitions differ by manufacturer. Contact-sealed variants are normally greased for life and run slower. Always confirm the exact variant in the manufacturer's table.
| Brand | Grease open / shielded | Oil open | Reference | Limiting |
|---|---|---|---|---|
| NSK 6340 | 1,300 r/min | 1,600 r/min | — | — |
| NTN 6340 | 1,500 r/min | 1,800 r/min | — | — |
| Timken 6340 | 2,100 r/min | 2,900 r/min | — | — |
References
- NSK — NSK Ltd., Rolling Bearings for Industrial Machinery, CAT. No. E1103, Tokyo, Japan, Jan. 2025.
- NTN — NTN Corporation, Ball and Roller Bearings, CAT. No. 2203-3E, Osaka, Japan, Sep. 2000.
- Timken — The Timken Company, Deep Groove Ball Bearings, Catalog 10857, North Canton, OH, USA.
Related Guides
Disclaimer: Data on this page is compiled from publicly available online sources for reference only, and not every model appears in a manufacturer's published catalog. Values may differ between sources and editions — always verify against the manufacturer's current documentation before design or purchase.Full disclaimer →