Double Row Cylindrical Roller Bearings NNU4176/C9

NNU4176/C9

  • Bore Diameter(d) 380 mm
  • Outer Diameter(D) 620 mm
  • Width(B) 243 mm
  • Dynamic Load Rating(Cr) 4130 kN
  • Static Load Rating(Cor) 8350 kN
  • Weight 288 kg
Main Dimensions
380mm × 620mm × 243mm
Bearing Type
Double Row Cylindrical Roller Bearings
d 380 mm Bore Diameter
D 620 mm Outer Diameter
Cr 4130 kN Dynamic Load Rating
Cor 8350 kN Static Load Rating
Mass 288 Kg Mass

NNU Series Double Row Cylindrical Roller Bearing NNU4176/C9 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 380 mm bore, 620 mm outer diameter, and 243 mm width, it supports 4130 kN dynamic load and 8350 kN static load ratings. It features special suffix: C9. 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
  • 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.