Four-Row Tapered Roller Bearings – TEDIN Series
TEDIN four-row tapered roller bearings are engineered for heavy-duty performance, available in both TQO and TQI configurations with optional open or sealed designs. These bearings are precision-manufactured with predefined axial internal clearance (BEP) to meet the demanding requirements of rolling mill work rolls, ensuring optimal load distribution and operational stability.
Constructed from premium-grade materials and subjected to advanced heat treatment processes, TEDIN bearings deliver exceptional durability and extended service life. Innovative sealing technology further enhances reliability by protecting against contamination. All bearings comply with ISO standards for dimensional and running accuracy, guaranteeing consistent performance in industrial applications.
Bearing Code: LM451349DW-90104
Bearing Type: Four row tapered roller bearings used for rolling mills.
Structure type: TDO Configuration
Dimensions: ID266.7xOD355.6xH228.6mm
Weight: 64.8kg
Precision Grade: ISO P5
Rating Load: Cr=1830kN, Cor=5320kN
Material: Case-hardened steel, High Carbon Bearing Steel
Heat Treatment: Case-hardened, Bainite hardened
Features and Benefits
- Robust TQO/TQI designs for versatile mounting
- Customizable clearance (BEP) for precise roll positioning
- Enhanced longevity through material and process excellence
- ISO-certified precision for smooth operation
- Optional sealing solutions for harsh environments
Ideal for rolling mills and other high-load applications where precision and reliability are critical.
Typical Applications in Rolling Mills
Key Roles in Rolling Mills
Supporting Heavy Loads – Designed to withstand high radial and axial forces generated during metal rolling processes, ensuring stable operation even under severe stress.
Accommodating Misalignment – The multi-row tapered roller arrangement compensates for minor shaft deflections and misalignments common in rolling mills.
High-Speed Performance – Optimized for continuous operation in hot and cold rolling mills, maintaining reliability at varying speeds.
Enhanced Durability – Manufactured with high-grade steel and advanced heat treatment, these bearings resist wear, fatigue, and harsh conditions like high temperatures and contamination.
Backup Roll Bearings
Used in work rolls and backup rolls of plate, strip, and section mills to handle extreme rolling forces.
Intermediate Rollers
Support intermediate rolls in multi-roll mills (e.g., 6-high or 20-high mills) for precise thickness control.
Continuous Casting Machines
Ensure smooth rotation of rollers in casting lines, reducing downtime and maintenance needs.
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