Advanced Product Solutions
Four-Row Cylindrical
Roller Bearings
NSK four-row cylindrical bearings are engineered specifically to accommodate the extremely heavy and impact loads – while running smoothly and accurately – in the back-up rolls of rolling mill stands. Amid particularly harsh operating conditions, NSK’s long-life Super-TF steel provides significantly higher durability to counteract the heavy rolling load and the high probability of compromised bearing lubrication due to contamination.
Available in a large range of design types with high-performance cage options, and manufactured to precision tolerances, NSK four-row cylindrical bearings are optimized to deliver high capacity and high accuracy for uninterrupted and precise plate making.
Proven Benefits
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Exceptionally high load carrying capacity from four-row design, optimized in machined steel cage designs with larger rollers |
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Suitable for high and low speeds, accommodating rapid acceleration and deceleration |
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Higher reliability and longer operating life with Super-TF steel, reducing bearing replacement and maintenance intervals |
Design Features
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Special design high load capacity four-row cylindrical roller bearing |
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With long-life Super-TF steel for dramatically longer service life under contaminated operating conditions |
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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 |
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With cylindrical and tapered bores |
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Available with machined brass or machined steel cage designs |
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Corrosion resistant phosphate coating option for designated surfaces |
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With outer ring lubrication groove and hole features |
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With precision tolerances for high rotational accuracy |
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With special, custom, C3 or C4 radial clearance |
Designation System
Bearing Dimensions and Operating Values
