NNU4888K/W33 Bearing Technical Specifications
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- Bore Diameter(d) 440mm
- Outer Diameter (D) 540mm
- Width(B) 100mm
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- Dynamic Load Rating (Cr) 1000kN
- Static Load Rating (Cor) 3000kN
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- Weight 49kg
The NNU4888K/W33 NNU Series Double Row Cylindrical Roller Bearing is designed for extremely high radial load precision applications. With dimensions of 440mm bore diameter, 540mm outer diameter, and 100mm width, this heavy-duty bearing delivers outstanding performance in demanding industrial environments. It features a dynamic load rating of 1000kN and static load rating of 3000kN for high load capacity in demanding applications. 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
440mm × 540mm × 100mm
| ID | 440mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 540mm | Outside diameter(O.D.) |
| B | 100mm | Width |
| Cr | 1000kN | Radial dynamic load rating |
| Cor | 3000kN | Radial static load rating |
| Mass | 49Kg | 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.