NNU4068/W33X Bearing Technical Specifications
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- Bore Diameter(d) 340mm
- Outer Diameter (D) 520mm
- Width(B) 180mm
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- Dynamic Load Rating (Cr) 2490kN
- Static Load Rating (Cor) 4800kN
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- Weight 136kg
The NNU4068/W33X NNU Series Double Row Cylindrical Roller Bearing is designed for extremely high radial load precision applications. With dimensions of 340mm bore diameter, 520mm outer diameter, and 180mm width, this heavy-duty bearing delivers outstanding performance in demanding industrial environments. It features a dynamic load rating of 2490kN and static load rating of 4800kN for ultimate load capacity in extreme conditions. The inner ring without flanges, outer ring without flanges design provides optimal performance for specific application requirements. Featuring lubrication groove and holes for enhanced operational reliability.
Commonly used in: precision machineryindustrial equipmentrolling millslarge machine toolsindustrial gearboxesapplications requiring regular lubrication
Bearing Type
Main Dimensions
340mm × 520mm × 180mm
| ID | 340mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 520mm | Outside diameter(O.D.) |
| B | 180mm | Width |
| Cr | 2490kN | Radial dynamic load rating |
| Cor | 4800kN | Radial static load rating |
| Mass | 136Kg | Weight |
Material
GCr15 Bearing Steel (Customizable materials: GCr15 Bearing Steel/GCr15SiMn/GCr18Mo/G20Cr2Ni4A)
Cage
Standard cage ( customizable on demand in steel, brass, machined brass, etc.)
Precision Rating
P0 (Customizable on demand in P0/P6/P5/P4 grades; higher precision for demanding applications)
Clearance
C3 clearance (customizable on demand in C0/C2/C3/C4/C5 specifications)
Brand
WJY / OEM Available
Origin
Quality Standard
Delivery Time
- For in-stock own-brand bearings, Dalian JinYu HuaYang guarantees shipment arrangement within 3–5 days after payment confirmation.
- For OEM/ODM orders, the production and delivery lead time for a full container typically ranges from 20–35 days (depending on order complexity).
Shipping Methods
Ocean Freight/Land Transport
Warranty
We provide 12-month warranty, extendable to 18 months via authorized JinYu distributors.
Pricing Information
Bearings prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.