NNU30/670 Technical Specifications
| Bearing Type | Double Row Cylindrical Roller Bearings |
|---|---|
| d (ID) | 670mm |
| D (OD) | 980mm |
| B (Width) | 230mm |
| Dynamic Load (Cr) | 4980kN |
| Static Load (Cor) | 11300kN |
| Mass | 594Kg |
| Material | High-carbon chromium bearing steel (GCr15 / 52100 equivalent) |
| Cage | Precision-machined brass cage |
| Clearance | C3 clearance |
| Precision | P0 / Normal grade |
Product Description
NNU30/670 is a double row cylindrical roller bearing with dimensions of 670×980×230 mm. It features flanges on the outer ring and is designed for high radial loads and precise shaft guidance. The NNU30 series is commonly used in precision machinery requiring high running accuracy and stiffness.
Key Features
- Outer ring rib design provides excellent rigidity and radial guidance.
- High running accuracy for precision applications.
- Low friction and high-speed capability.
- Suitable for machine tool spindle and precision equipment applications.
Applications
- Machine tool spindles
- Grinding machines
- Machining centers
- Precision machine tools
- Industrial gearboxes
- Rolling mill equipment
- Heavy-duty metallurgical machinery
- Large industrial rotating equipment
Delivery & Service
Delivery Time
In-stock items: 3–5 working days; Bulk orders: 7–15 working days.
Shipping
Ocean Freight / Land Transport
Warranty
12-month warranty, extendable to 18 months.
Loading Port
Dalian Port or other nominated port
Packing
Export packing: tube + box + carton + wooden case
Order
Mixed models & small orders welcome
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