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.

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
| Property | Value |
|---|---|
| Type | Four-Row Tapered Roller Bearing |
| Bore Diameter | 130 mm - 1060 mm |
| Outer Diameter | 180 mm - 1400 mm |
| Width | 150 mm - 920 mm |
| Material | Case-hardened bearing steel / Through-hardened steel |
| Cage Type | Machined brass / Pin-type steel cage |
| Precision Class | Normal / P6 available |
| Speed Rating | Up to 600 RPM (size dependent) |
| Dynamic Load Rating | 900 kN - 15,000 kN |
| Static Load Rating | 1,500 kN - 22,000 kN |
| Seal Options | Open / Custom sealing configurations available |
| Standards | ISO 355, manufacturer standard |