NNU4188K30M/W33
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- Bore Diameter(d) 440 mm
- Outer Diameter(D) 720 mm
- Width(B) 280 mm
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- Dynamic Load Rating(Cr) 5650 kN
- Static Load Rating(Cor) 11500 kN
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- Weight 452 kg
- Main Dimensions
- 440mm × 720mm × 280mm
- Bearing Type
- Double Row Cylindrical Roller Bearings
| d | 440 mm | Bore Diameter |
|---|---|---|
| D | 720 mm | Outer Diameter |
| Cr | 5650 kN | Dynamic Load Rating |
| Cor | 11500 kN | Static Load Rating |
| Mass | 452 Kg | Mass |
NNU Series Double Row Cylindrical Roller Bearing NNU4188K30M/W33 is engineered for heavy-duty industrial applications with a bore range of 100-1500 mm. Two ribs on both outer rings and no rib on the inner ring, allowing bidirectional shaft movement. Outer ring is easily detachable for simplified maintenance. With 440 mm bore, 720 mm outer diameter, and 280 mm width, it supports 5650 kN dynamic load and 11500 kN static load ratings. It features special suffix: K30M and includes lubrication grooves and holes for continuous oil supply. Ideal for rolling mills, gearboxes, and large rotating machinery requiring high radial stiffness and durability. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
- Precision Rating
- P0 (Standard) / P6 / P5 / P4 (Higher precision for demanding applications)
- Cage
- Material
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- GCr15 Bearing Steel (Industry-standard for high load & fatigue resistance)
- GCr15SiMn
- GCr18Mo
- G20Cr2Ni4A
- Clearance
- C3 (standard), customizable to C0/C2/C4/C5
- Brand
- WJY / OEM Available
- Origin
- Wafangdian, China (Global bearing manufacturing hub with 30+ years expertise)
- Quality Standard
- ISO 9001:2015 Certified
- 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 for all our products.
- Pricing Information
- Bearings prices vary based on precision grade, raw materials, and market factors. For customized quotes, please submit an inquiry.