NU256M Cylindrical Roller Bearing

NU256M Bearing Technical Specifications

  • Bore Diameter(d) 280mm
  • Outer Diameter (D) 500mm
  • Width(B) 80mm
  • Dynamic Load Rating (Cr) 1100kN
  • Static Load Rating (Cor) 1750kN
  • Weight 70kg

The NU256M NU Series Cylindrical Roller Bearing is designed for high radial load applications with free axial displacement. With dimensions of 280mm bore diameter, 500mm outer diameter, and 80mm width, this standard bearing delivers outstanding performance in demanding industrial environments. It features a dynamic load rating of 1100kN and static load rating of 1750kN for exceptional load capacity in heavy-duty applications. The inner ring without flanges, outer ring with two flanges design provides optimal performance for specific application requirements. Featuring machined brass cage for enhanced operational reliability.

Commonly used in: electric motorsindustrial gearboxespumpsmachine tool spindles

Main Dimensions

280mm × 500mm × 80mm

ID 280mm Inside diameter(I.D.)
OD 500mm Outside diameter(O.D.)
B 80mm Width
Cr 1100kN Radial dynamic load rating
Cor 1750kN Radial static load rating
Mass 70Kg 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

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, 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.