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Single row cylindrical roller bearings factory

Single Row Cylindrical Roller Bearings

ZMS single row cylindrical roller bearings are designed to accommodate high radial loads and operate efficiently at high speeds.

By using premium chrome steel and mature craft, we can achieve P6,P5, P4 precision. Keep the cage to be steel or brass as options. And we can custom made single row cylindrical roller bearings as requirements of different applications.

Modals are available in multiple configurations:
NU Series — Two fixed ribs on the outer ring; no ribs on the inner ring. Allows axial displacement in both directions.
NJ Series — Two fixed ribs on the outer ring and one on the inner ring. Supports axial loads in one direction.
NUP Series — Two fixed ribs on the outer ring, one fixed rib plus a loose rib washer on the inner ring. Acts as a locating bearing for axial loads in both directions.
N Series — Two fixed ribs on the inner ring; smooth outer ring. Allows axial displacement.
Other Variants — NF, full-complement designs (no cage for maximum load capacity), and enhanced “E” series for higher capacity.

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Technical Specifications

Bore Diameter Range: 15 mm to 1,060 mm (or larger on request)
Material: High-quality chrome steel (GCr15/52100) or specialized alloys for extreme conditions
Cage Options: Brass, steel, polyamide, or full-complement (no cage)
Clearance: Normal (CN/C0), C3, C4, or custom
Precision: Standard to P6/P5 (higher on request)
Speed Ratings: High-speed capable depending on lubrication and design
Load Ratings: Dynamic and static ratings vary by size—contact us for specific calculations

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Features

High Radial Load Capacity — Line contact between cylindrical rollers and raceways allows them to support significantly heavier radial loads than equivalent-sized ball bearings.
High Stiffness & Rigidity — Excellent for applications requiring precise shaft positioning and minimal deflection under load.
Low Friction & High-Speed Capability — Optimized roller end/flange geometry and surface finish reduce friction, enabling higher speeds and lower operating temperatures.
Separable Design — Inner and outer rings can be mounted separately, simplifying assembly, disassembly, and maintenance—even with interference fits.
Axial Displacement Accommodation — Certain designs ( NU and N series) allow limited axial movement of the shaft relative to the housing, compensating for thermal expansion.
Long Service Life — Advanced materials, precision manufacturing, and optional enhanced designs ( increased capacity “E” suffix) deliver extended reliability and reduced downtime.
Interchangeable Components — Rings and roller assemblies are often interchangeable, offering design flexibility.

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Applications

Electric motors and generators
Gearboxes and transmissions
Pumps and compressors
Material handling equipment (conveyors, cranes)
Railway axle boxes and traction motors
Steel mills, paper mills, and rolling mills
Machine tool spindles
Construction and mining machinery
Wind turbines and industrial drives

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Why us?

Premium quality materials
Competitive pricing with volume discounts
Full technical support, including bearing selection, mounting guidance, and lubrication recommendations
Delivery time short if we have stocking 
Custom options available (special clearances, coatings, seals, or electrically insulated versions)
Packing as customer requirements