BNTB2452125 Backing Bearings

Backing Bearings BNTB2452125 Basic Parameters

Dimensions
  • Bore Diameter(d) 120 mm
  • Outer Diameter (D) 260 mm
  • Width(B) 125 mm
Basic Load Rating
  • Dynamic Load Rating (Cr) 992 kN
  • Static Load Rating (Cor) 1695 kN
  • Weight 40 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. BNTB2452125
Design No. 8
Weight 40
Boundary Dimensions d 120
D 260
B 125
C 125
H 70
d1
D1
E 193
F 141
rmin 1
K 6
N*
Basic Load Rating Bearings - Cr 992
Bearings - Cor 1695
roller - Cr 680
roller - Cor 1200
Radial max - Cr 410
Radial max - Cor 850

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