Four-Row Tapered Roller Bearing

Four-row tapered roller bearings for rolling mill applications — combined radial and axial load support for work roll and backup roll chock assemblies. Interchangeable with major brand equivalents. Factory direct from ANDE.

✓ Direct replacement for SKF / Timken / NSK equivalentsStandard lead time: 2-4 weeksMOQ: 1 piece for samples, 10+ pieces for ordersSamples available — 5-7 day delivery
Four-Row Tapered Roller Bearing

Technical Overview

Four-Row Tapered Roller Bearings combine the heavy radial load capacity of a four-row design with the ability to support significant axial thrust loads in both directions. The tapered roller geometry creates line contact for high load capacity while the four-row arrangement distributes the load across multiple rows for maximum bearing life. These bearings are essential components in rolling mill work roll and backup roll bearing chock assemblies where both radial and axial forces are present. ANDE four-row tapered roller bearings are manufactured to exacting standards with precision-ground tapered raceways, heat-treated rollers, and robust cage assemblies designed for the continuous high-load operation typical in hot and cold steel rolling mills. Our four-row tapered roller bearings serve as the primary roll neck support in main mill stands, handling the combined forces generated during hot strip rolling, cold rolling, and plate rolling operations. We provide interchangeable size and performance benchmarking solutions that can directly replace equivalent bearings from major international manufacturers. All trademarks mentioned belong to their respective owners.

Key Features

  • Four-row tapered design for combined radial and axial loads
  • High load capacity with extended service life in continuous rolling operations
  • Precision-ground tapered raceways for smooth, low-vibration operation
  • Adjustable internal clearance and preload for optimal performance at operating temperature
  • Interchangeable dimensions with SKF, Timken, NSK, and other major brand equivalents
  • Available with custom clearance, lubrication, and sealing configurations
  • Robust cage assemblies (machined brass / pin-type steel) for extreme operating conditions

Technical Specifications

PropertyValue
TypeFour-Row Tapered Roller Bearing
Bore Diameter130 mm - 1060 mm
Outer Diameter180 mm - 1400 mm
Width150 mm - 920 mm
MaterialCase-hardened bearing steel / Through-hardened steel
Cage TypeMachined brass / Pin-type steel cage
Precision ClassNormal / P6 available
Speed RatingUp to 600 RPM (size dependent)
Dynamic Load Rating900 kN - 15,000 kN
Static Load Rating1,500 kN - 22,000 kN
Seal OptionsOpen / Custom sealing configurations available
StandardsISO 355, manufacturer standard

Applications

Rolling mill work roll chock assemblies (hot strip & cold rolling)
Backup roll bearing arrangements in strip mills
Main mill stand roll neck support
Plate mill roll support with axial thrust requirements
Heavy industrial applications with combined radial and axial loading