CUSTOM CYLINDRICAL ROLLER BEARING SOLUTIONS

High-Precision Cylindrical Roller Bearings

TEDIN delivers precision-engineered cylindrical roller bearings with custom design support for demanding industrial applications.

Custom solutions for specific load, speed, and operating conditions
High-precision manufacturing with reliable quality consistency
Factory-direct support from design to production

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Introduction Overview

Engineered for Heavy Radial Loads

As a specialized bearing manufacturer, Tedin produces precision cylindrical roller bearings designed to manage heavy radial loads under high-speed operations. Because the cylindrical rollers are in linear contact with the raceways, they offer greater radial load capacity compared to standard ball bearings while maintaining low friction. Whether you need standard single row designs or heavy-duty multi-row configurations, our products ensure stable performance in demanding industrial environments.

CRB Product Series

Explore Our Cylindrical Roller Bearing Categories

Whether you are looking for high-precision bearings for machine tool spindles or heavy-duty solutions for rolling mill equipment, our complete range of cylindrical roller bearings delivers outstanding performance. Click the tabs below to explore the structural features of each series.

Single Row Cylindrical Roller Bearings

Designed to accommodate high radial loads and high speeds. Our single row cylindrical roller bearings feature an optimized internal geometry that minimizes friction and heat generation, ensuring reliable performance in demanding industrial environments.

Double Row Cylindrical Roller Bearings

Engineered for exceptional radial stiffness and high-precision operations. Double row cylindrical roller bearings provide maximum rigidity, making them the ideal choice for applications where radial space is limited but high load capacity is required.

Multi-row Cylindrical Roller Bearings

Designed for the most demanding heavy-industry applications, multi-row (typically four-row) cylindrical roller bearings provide the absolute maximum radial load-carrying capacity. Featuring exceptional rigidity and low friction, they are engineered specifically to withstand severe operating conditions in steel, aluminum, and other metal rolling mills.

Full Complement Cylindrical Roller Bearings

Incorporating the maximum number of rollers without a cage, full complement bearings offer the highest possible radial load-carrying capacity. They are specifically designed to withstand extremely heavy loads at low to moderate speeds.

Custom Cylindrical Roller Bearings

When standard options aren’t enough, we engineer custom cylindrical roller bearings tailored to your exact working conditions. Whether you are dealing with extreme temperatures, heavy shock loads, or limited installation space, our engineering team provides bespoke solutions to maximize equipment performance and service life.

Core Advantage

Why Choose Tedin Cylindrical Roller Bearings

Three core pillars — exceptional load capacity, P5/P4/P2 manufacturing precision grade, and engineered design — that define the reliability of our cylindrical roller bearings.

01 DESIGN

Exceptional Load Capacity

Modified line contact eliminates edge stress concentration, maximizing radial load capacity and extending fatigue life for heavy machinery.

02 ACCURACY

High Precision Grades

Precision Grade: P5/P4/P2. Optimized internal geometry and strict surface roughness control minimize friction, ensuring stable high-speed rotation with lower heat generation.

03 STRUCTURE

Separable & Interchangeable

Separable inner and outer rings simplify the mounting and dismounting process, significantly reducing maintenance downtime for your equipment.

04 MATERIAL

Premium Materials & Cages

Forged from high-purity GCr15/GCr15SiMn/G20Cr2Ni4A steel. Available with machined brass, pressed steel, or polyamide cages to suit specific operating conditions.

05 QUALITY

Strict Quality Inspection

100% batch-level testing for dimensions, vibration, and noise. Fully aligned with ISO 9001 standards to guarantee consistent, reliable performance.

06 CUSTOM SERVICE

Custom Engineering

Offering tailored design and custom dimensions. We provide flexible manufacturing to meet your specific application requirements.

Comparison table

Application & Performance Comparison

Industry / Application	Recommended Series	Radial Load	Speed	Precision	Size Range (OD)	Key Performance Focus
Electric Motors	Single-Row (NU, NJ)	Medium	High	High (Low Noise)	40-200mm	Shaft thermal expansion, low-noise
Mining & Construction	Heavy-Duty Single/Double Row	Extreme (Shock Loads)	Low-Mod	Standard	100-800mm+	Shock load resistance, maximum capacity
Machine Tool Spindles	Precision Double-Row (NN/NNU)	Med-Heavy	Ultra-High	Ultra (P4/SP/P2)	50-500mm	Radial stiffness, high-speed accuracy
Pumps & Compressors	Industrial Single-Row	Heavy	High	High	80-300mm	Precise shaft alignment, low friction heat
Rolling Mills & Metallurgy	Multi-Row (FC, FCD)	Extreme	Low-Mod	Std-High	200-1000mm+	Crushing radial loads, extreme durability
Industrial Gearboxes	Heavy-Duty Cylindrical	Heavy	Moderate	High	100-500mm	Fatigue resistance, high torque transmission
Aerospace & Defense	Custom Aerospace	Med-Heavy	High	Ultra-high	20-150mm	Advanced materials, extreme reliability

Industries & Application

Proven Applications of Our Cylindrical Roller Bearings

Optimize your equipment with our durable cylindrical roller bearings, built to handle extreme radial loads while minimizing maintenance downtime.

Electric Motors

Designed for industrial motors, our single-row cylindrical roller bearings (NU/NJ) easily accommodate shaft thermal expansion while delivering high-speed, low-noise, and vibration-free operation.

Mining & Construction

Facing severe shock loads, our cylindrical roller bearings maximize radial load capacity in compact spaces for crushers, vibrating screens, and excavators.

Machine Tool Spindles

Our precision double-row cylindrical roller bearings (NN/NNU) provide exceptional radial stiffness and high-speed accuracy, ensuring absolute stability for CNC machine tool spindles.

Pumps & Compressors

Operating under high speeds and varying pressures, our industrial cylindrical roller bearings ensure precise shaft alignment and minimize friction heat for fluid handling systems.

Rolling Mills & Metallurgy

Engineered for extreme environments, our multi-row cylindrical roller bearings withstand crushing radial loads and high temperatures in cold and hot steel rolling mills.

Industrial Gearboxes

Built to endure immense radial forces, our heavy-duty cylindrical roller bearings offer superior load capacity and fatigue resistance for wind turbines, planetary reducers, and heavy transmissions.

Aerospace & Defense

Manufactured from advanced materials, our aerospace cylindrical roller bearings deliver extreme reliability and precision for aero-engine auxiliary drives, missile actuators, and radar turntables.

Quality Assurance & Engineering

Strict Quality Control & Metrology

Committed to a zero-defect policy. Our state-of-the-art inspection center implements rigorous testing at every manufacturing stage to guarantee uncompromising reliability.

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01 / Advanced Metrology & CMM

Utilizing high-precision Coordinate Measuring Machines (CMM) and roundness testers to strictly verify dimensional tolerances and geometric accuracy.

02 / Non-Destructive Testing

100% Magnetic Particle Inspection (MPI) and ultrasonic testing ensure zero surface or sub-surface micro-cracks in rings and rollers.

03 / Metallurgical Analysis

In-house metallurgical labs conduct rigorous Rockwell/Vickers hardness tests and microstructure analysis to validate load-bearing capacity.

04 / Statistical Process Control

Implementing strict SPC and automated In-Process Quality Control (IPQC) to maintain absolute consistency across large volume batches.

Frequently Asked Questions

Technical insights and purchasing details for our high-precision cylindrical roller bearings.

The main difference lies in the ring ribs (flanges) and their ability to handle axial loads. NU Series has two ribs on the outer ring and no ribs on the inner ring, accommodating pure radial loads and allowing for axial displacement. NJ Series has one rib on the inner ring, taking light axial loads in one direction. NUP Series has a fixed rib and a loose rib ring on the inner ring, locating the shaft axially in both directions.

Primarily, they are designed for extremely high radial loads. However, series with ribs on both the inner and outer rings (like NJ, NUP, and N series) can support light to moderate axial loads. For heavy axial loads, we recommend pairing them with thrust bearings.

CN (Normal) is for standard operating conditions. We highly recommend C3 or C4 clearance for applications involving high speeds, extreme temperatures, or tight interference fits (like industrial gearboxes and steel mills), as the extra clearance compensates for thermal expansion.

Yes! Our engineering team specializes in custom solutions. We can customize dimensions, precision classes (up to P4/SP), special coatings, and cage materials (Brass, Steel, or Polyamide) to meet the exact requirements of your aerospace, metallurgy, or pump applications.

For standard series (like common NU/NJ sizes), we maintain a robust inventory with a lead time of 1-2 weeks. For custom or large-size bearings (like multi-row mill bearings), the lead time is typically 4-8 weeks. Our MOQ is flexible depending on the bearing size—please contact our sales team for a specific quote.

Still have questions about bearing selection?

Our technical engineers are ready to help you find the perfect solution for your application.