| Model | Inner Diameter (mm) | Outer Diameter (mm) | Width (mm) | Load Rating (Dynamic/Static) | Seal Type |
|---|---|---|---|---|---|
| 672 ZZ | 2 | 5 | 2.3 | 0.32 kN / 0.11 kN | Double Shielded (ZZ) |
| 673 ZZ | 3 | 6 | 2.5 | 0.45 kN / 0.16 kN | Double Shielded (ZZ) |
| 679 ZZ | 4 | 7 | 2.8 | 0.67 kN / 0.24 kN | Double Shielded (ZZ) |
Key Features: C3 clearance for thermal expansion, 2RS/ZZ sealing options, compatible with NTN/NSK/NACHI/Koyo standards[1][3].
Optimized for high-speed (up to 30,000 rpm) and high-temperature (150°C max) environments[6].
Model 675 ZZ reduces friction in 6-axis robot joints, improving positioning accuracy by 15%.
678 2RS withstands humid environments in commercial air handlers, extending service life by 2x vs standard bearings.
Challenge: Premature failure in EV battery cooling fans.
Solution: 676 C3 bearings with grease optimized for 200°C operation.
Result: 0 field failures over 18 months.
Challenge: Vibration in satellite positioning mechanisms.
Solution: 674 ZZ bearings with ABEC-5 precision grading.
Result: 98% noise reduction per ISO 1940-1 standards.
| Factor | Critical Requirements |
|---|---|
| Certification | ISO 9001, IATF 16949 for automotive |
| Lead Time | ≤15 days for standard models |
| Testing Reports | Radial play, endurance testing data |
Email: info@vivalr.com
Phone: (86) 15866781826
Technical Support: Provide CAD models, lubrication guides, and failure analysis reports within 24hrs.
[1] 进口日本NSK轴承673 674 675 676 677 678 679 ZZ DDU高温 高速
[3] NSK进口轴承微型小轴承673 674 675 676 677 678 679ZZ Z*
[6] 深沟球轴承(一种滚动轴承)-百科
[7] 微型轴承型号尺寸对照表
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