BNUP2045126 Backing Bearings

Backing Bearings BNUP2045126 Basic Parameters

Dimensions
  • Bore Diameter(d) 100 mm
  • Outer Diameter (D) 225 mm
  • Width(B) 126 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) 672 kN
  • Static Load Rating (Cor) 1090 kN
  • Weight 28 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. BNUP2045126
Design No. 3
Weight 28
Boundary Dimensions d 100
D 225
B 126
C 119
H 62.5
d1
D1
E 163.5
F 119.5
rmin 2
K 6
N* 6
Basic Load Rating Bearings - Cr 672
Bearings - Cor 1090
roller - Cr 505
roller - Cor 810
Radial max - Cr 370
Radial max - Cor 520

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