NNCF224690 Backing Bearings

Backing Bearings NNCF224690 Basic Parameters

Dimensions
  • Bore Diameter(d) 110 mm
  • Outer Diameter (D) 230 mm
  • Width(B) 90 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) 663 kN
  • Static Load Rating (Cor) 1174 kN
  • Weight 22 kg

Pricing Information

Bearing prices vary based on precision grade, raw materials, and market factors. For customized quotes, please submit an inquiry.

Technical Specifications

Bearing No. NNCF224690
Design No. 6
Weight 22
Boundary Dimensions d 110
D 230
B 90
C 90
H 60
d1
D1
E 172
F 132
rmin 1
K 6
N* 6
Basic Load Rating Bearings - Cr 663
Bearings - Cor 1174
roller - Cr 500
roller - Cor 860
Radial max - Cr 490
Radial max - Cor 640

Superior Material & Durability

Manufactured from premium G20Cr2Ni4A carburized steel with advanced heat treatment:

  • Carburized layer depth ≥2.0mm
  • Surface hardness HRC60-64
  • Core toughness HRC30-40
  • 40% longer service life

P4-Grade Precision Engineering

Meets ISO P4/ABEC 9 standards:

  • Dimensional tolerance ±2μm
  • Roundness error ≤0.5μm
  • Cylindricity error ≤1μm
  • Surface roughness Ra≤0.025μm
  • 30% reduced friction

Rigorous Quality Control

  • ISO 9001 certified manufacturing
  • Full dimensional inspection reports
  • Hardness gradient testing
  • Dynamic performance evaluation
  • 100% factory inspection

Typical Applications

Metal Processing & Steel Industry

  • Hot/cold rolling mill support bearings
  • Ladle turret bearings
  • Coiler/straightener machine bearings

Mining Equipment

  • Crusher bearings
  • Ball mill bearings
  • Mining drill bearings

Construction Machinery

  • Excavator slewing bearings
  • Crane bearings
  • Port machinery bearings

Power Generation

  • Industrial turbine bearings
  • Wind turbine gearbox bearings
  • Hydroelectric generator bearings