NN3028K Technical Specifications
| Bearing Type | Double Row Cylindrical Roller Bearings |
|---|---|
| d (ID) | 140mm |
| D (OD) | 210mm |
| B (Width) | 53mm |
| Dynamic Load (Cr) | 320kN |
| Static Load (Cor) | 575kN |
| Mass | 6.05Kg |
| Material | High-carbon chromium bearing steel (GCr15 / 52100 equivalent) |
| Cage | Precision-machined brass cage |
| Clearance | C3 clearance |
| Precision | P0 / Normal grade |
Product Description
NN3028K is an NN series double row cylindrical roller bearing with dimensions of 140×210×53 mm. The bearing is designed to provide high radial load capacity, excellent rigidity and high rotational accuracy for machine tool spindles, grinding machines and high-precision rotating equipment.
This bearing features a tapered bore (1:12 taper), allowing precise mounting adjustment and preload control, making it particularly suitable for machine tool spindle applications.
Key Features
- Double row cylindrical roller bearing design.
- High radial load carrying capacity.
- Excellent rigidity and shaft guidance.
- High running accuracy for precision applications.
- Low friction and high-speed capability.
- Suitable for machine tool spindle applications.
- Tapered bore design enables accurate mounting and radial clearance adjustment.
Applications
- Machine tool spindles
- Grinding machines
- Machining centers
- Precision industrial equipment
- Industrial gearboxes
- Rolling mill equipment
Related Products
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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