Single-row Cylindrical Roller Bearing - Product Description

1. Product Overview

Single-row cylindrical roller bearings are one of the most popular separable rolling bearing types, designed with cylindrical rolling elements instead of steel balls. Different from ball bearings, they adopt line contact structure between rollers and raceways, which greatly improves load-bearing performance and structural rigidity. These bearings feature a separable design, allowing the inner ring, outer ring and roller assembly to be installed and disassembled separately. This structural advantage simplifies installation, replacement and daily maintenance, making them ideal for various industrial transmission equipment with heavy load and high-speed operation requirements.

In addition, standard single-row cylindrical roller bearings allow a certain degree of axial displacement, which can effectively compensate the thermal expansion and contraction of the shaft during equipment operation, avoid bearing jamming and abrasion, and ensure the long-term stable operation of mechanical equipment.

2. Main Product Series & Common Models

Single-row cylindrical roller bearings are divided into four mainstream structural types according to different rib designs, covering most industrial application scenarios:

N Series

Structural feature: Double ribs on inner ring, no ribs on outer ring
Common models: N205, N206, N207, N208, N209, N210, N2208, N2210, N308, N310

NU Series

Structural feature: Double ribs on outer ring, no ribs on inner ring, free axial movement
Common models: NU205, NU206, NU207, NU208, NU209, NU210, NU2208, NU2210, NU308, NU310

NJ Series

Structural feature: Double ribs on outer ring, single rib on inner ring, capable of bearing one-way axial load
Common models: NJ205, NJ206, NJ207, NJ208, NJ209, NJ210, NJ2208

NUP Series

Structural feature: Equipped with movable loose rib, can bear bidirectional axial load, realize axial positioning
Common models: NUP205, NUP206, NUP207, NUP208, NUP209, NUP210

3. Core Performance Characteristics

High Radial Load Capacity

Thanks to the line contact working mode between cylindrical rollers and raceways, the contact area is larger than that of traditional ball bearings. Under the same outer diameter and size, its radial load capacity is 2-3 times that of deep groove ball bearings, which can stably bear heavy radial impact loads and is suitable for heavy-duty mechanical working conditions.

Excellent Structural Rigidity & Stability

The integral roller arrangement and precision raceway processing effectively reduce elastic deformation under load. The bearing runs smoothly with low vibration and low noise, which can maintain high-precision operation for a long time and meet the precision transmission requirements of industrial equipment.

High Speed Adaptability

The optimized roller guidance structure and low-friction design greatly reduce rolling friction and heat generation. The bearings can adapt to medium and high-speed rotating working conditions, with low temperature rise and long service life during continuous operation.

Good Wear Resistance & Durability

Made of high-quality bearing steel, through overall quenching and precision grinding process, the bearing has high hardness, strong wear resistance and fatigue resistance. It can adapt to harsh working environments such as high load, dust and continuous operation, reducing equipment failure rate.

Convenient Installation & Maintenance

Separable structure design makes the inner and outer rings independent of each other, which is convenient for customers to install, disassemble and replace. It greatly reduces equipment maintenance time and later use cost.

4. Application Scope

Single-row cylindrical roller bearings are widely used in various industrial mechanical equipment that requires heavy radial load, high speed and high rigidity transmission, covering almost all mechanical manufacturing fields:

•Power Transmission Equipment: Gearboxes, reducers, transmission shafts, motors, generators

•Engineering Machinery: Excavators, loaders, cranes, road construction machinery accessories

•Machine Tool Equipment: Precision machine tool spindles, machining centers, lathe transmission systems

•Automotive Industry: Automobile gearboxes, engine accessories, chassis transmission parts

•Other Industrial Equipment: Pumps, fans, compressors, textile machinery, mining machinery, metallurgical equipment

5. Product Advantages

Our single-row cylindrical roller bearings adopt strict precision manufacturing standards, with complete models, stable quality and high cost performance. We support standard size products and customized processing according to customer needs. All products have the characteristics of low friction, high precision, long service life and stable operation, which can effectively improve the operating efficiency of mechanical equipment and reduce downtime and maintenance costs for customers.