Super-TF Four-Row Cylindrical Roller Bearings

NSK four-row cylindrical bearings are engineered specifically to run smoothly and accurately while accommodating heavy loads and impact loads in the back-up rolls of rolling mill stands. Long-life Super-TF steel provides significantly higher durability to counteract the heavy rolling load and the high probability of compromised bearing lubrication.

Design Features

Special design high capacity four-row cylindrical roller bearing
With long-life Super-TF steel for dramatically longer service life under contaminated operating conditions
Wide range of design configurations with one- and two-piece inner or outer rings, integral outer ring ribs, outer ring spacers and outer flange rings
Available with machined brass, stud-type machined steel and pin-type machined steel cages
Corrosion resistant phosphate coating option for designated bearing surfaces
With outer ring lubrication groove and hole features
With cylindrical and tapered bore
Precision tolerances for high rotational accuracy
With C3, C4 and custom clearance

Operating Benefits

Exceptionally high load carrying capacity from four-row design, optimized in machined steel cage designs with larger rollers
Suitable for high and low speeds, accommodating rapid acceleration and deceleration
Higher reliability and longer operating life with Super-TF steel, reducing bearing replacement and maintenance intervals
High accuracy for improved precision in rolled steel