Deep Groove Ball Bearing
Koyo Timken NSK N318em N319em N320em Cylindrical Roller Bearing
ISO 9001 TS 16949
Genuine SKF
50+ Countries
24h Response

-- SKF Authorized Engineering Partner

Koyo Timken NSK N318em N319em N320em Cylindrical Roller Bearing

Ensure smooth, reliable operation in your machinery with our high-performance Cylindrical Roller Bearing, designed to handle radial loads with precision and minimize downtime. Available in models N318em, N319em, and N320em, this bearing features a single row design and unseparated construction for consistent performance under demanding conditions.

  • Precision ratings from P0 to P4 and vibration levels Z1V1 to Z3V3 ensure quiet, efficient operation tailored to your application needs
  • Grease or oil lubrication flexibility allows seamless integration into existing maintenance routines
  • Constructed with durable bearing steel (20*47*14 mm specification) for long-lasting reliability in industrial environments

Technical Specifications
Product Name
Koyo Timken NSK N318em N319em N320em Cylindrical Roller Bearing
Category
Deep Groove Ball Bearing
Quality Standard
ISO 9001 / TS 16949
Lead Time
8-12 Weeks Custom
Minimum Order
Negotiable

15+ Certified Engineers On-Call

Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.

Product Specifications

Parameter Details
Model Number 6204 6204R
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4
Vibration Z1V1 Z2V2 Z3V3
Aligning Non-Aligning Bearing
Separated Unseparated
Rows Number Single
Load Direction Radial Bearing
Material Bearing Steel
Specification 20*47*14 mm
Origin China
HS Code 8482102000

Application Suitability

Industry Typical Applications
Automation Equipment Conveyor systems, rotary tables
Mechanical Engineering Hydraulic pumps, gearboxes
Industrial Machinery Electric motors, fans

Struggling to Find Reliable Cylindrical Roller Bearings? Here’s What You Need

Many buyers face challenges with bearing procurement—whether it’s matching the right model across different brands, dealing with frequent maintenance issues from low-quality products, or managing multiple suppliers for various bearing types. These problems often lead to production delays and increased operational costs.

Comprehensive Solutions for Your Bearing Needs

Our cylindrical roller bearings, including models like N318em, N319em, and N320em, are designed to address these pain points. As a professional supplier with ISO 9001 certified processes, we cover a full range of bearing types and brands, ensuring you can source all your requirements from a single trusted partner. With substantial inventory, we offer quick access to both standard and hard-to-find models, supporting your production schedules without unnecessary delays.

Optimal Performance in Demanding Conditions

This cylindrical roller bearing excels in applications requiring high radial load capacity, such as in industrial gearboxes, heavy-duty conveyors, and mining equipment. Its single-row design and non-aligning structure make it suitable for precise shaft guidance where misalignment is minimal. The bearing operates effectively with either grease or oil lubrication, adapting to various operating environments while maintaining consistent performance under continuous load.

Key Engineering Features for Reliability

The use of high-quality bearing steel ensures excellent hardness and wear resistance, directly contributing to longer service life and reduced downtime. Precision ratings from P0 to P4 allow selection based on application requirements—from general industrial use (P0) to high-precision machinery (P4). Vibration classes Z1V1 to Z3V3 further enhance operational smoothness, critical for reducing noise and preventing premature failure in high-speed applications. The unseparated design simplifies installation and ensures structural integrity under dynamic loads.

Total Cost of Ownership: Why Quality Matters

Choosing the right bearing goes beyond initial cost. Inferior bearings often fail early due to material impurities or imprecise manufacturing, leading to unexpected shutdowns, replacement expenses, and lost productivity. Our bearings undergo rigorous testing—including dimensional checks, hardness verification, and surface treatment inspections—to meet industry standards. This attention to quality translates to lower total cost of ownership by minimizing maintenance needs and extending intervals between replacements.

Quality You Can Rely On

Our production and inspection processes adhere to ISO 9001 standards, ensuring consistent quality from raw material selection to final product testing. Each bearing is checked for dimensional accuracy, surface finish, and load-bearing capacity before shipment. We provide a warranty period covering manufacturing defects, with clear policies for returns and replacements. Additionally, our ability to handle OEM and ODM requests means we can customize bearings to your specific application requirements, supported by a flexible supply chain that accommodates both small and large orders.

Packaging & Shipping

  • Standard packaging includes carton boxes with palletization for bulk orders
  • Stock items are shipped within 1-3 business days after order confirmation
  • Multiple logistics options available: express courier, air freight, and sea freight
  • Low minimum order quantity supported, ideal for both trial runs and large-scale production

Get Your Cylindrical Roller Bearing Quote Today

Whether you need the N318em, N319em, N320em, or any other cylindrical roller bearing model, we can provide competitive pricing and reliable delivery. Simply share the specific model, dimensions, quantity, and destination, and our team will promptly prepare a detailed quote. With access to both international and domestic brands, we ensure you get the right bearing for your application without the hassle of multiple suppliers.

Frequently Asked Questions

Q: Do you supply bearings from other brands besides your own?

A: Yes, we offer a wide range of bearings including international brands like NSK, Koyo, Timken, and domestic quality brands. We can source specific models as per your requirements.

Q: How can I confirm if this bearing fits my equipment?

A: Provide your equipment model or the bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the specified cylindrical roller bearing.

Q: What is your warranty policy for bearings?

A: We provide a warranty against manufacturing defects. The warranty period and terms are specified in each order contract, with options for returns or replacements as needed.

Q: What is the minimum order quantity for these bearings?

A: We support low minimum order quantities, allowing you to order small batches for testing or larger volumes for production, depending on your needs.

Q: How long does shipping take, and what methods are available?

A: Stock items ship within 1-3 days. Shipping time depends on the method: express courier (3-7 days), air freight (5-10 days), or sea freight (3-6 weeks). We’ll recommend the best option based on your location and urgency.

Q: Can you produce custom bearings (OEM/ODM)?

A: Yes, we accept OEM and ODM orders. Provide your technical drawings, specifications, or sample, and we can manufacture bearings tailored to your application.

Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us via email or our online form for prompt assistance.

Wind Power

Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.

Mining & Heavy Industry

Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.

Steel & Metallurgy

Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.

Automotive & EV

Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.

Precision Machinery

Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.

General Industrial

Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.

01

Authorized SKF Engineering Partner

Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.

02

15+ Certified Engineers On-Staff

In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.

03

ISO 9001 & TS 16949 Certified QC

Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.

04

Global Logistics to 50+ Countries

Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.

Performance Metrics

35%

Failures Prevented

70%

Downtime Reduction

25+

Years Experience

24h

Quote Response

78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.

Application Design

Engineering

Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.

Failure Analysis

Diagnostics

Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.

Predictive Maintenance

IIoT

IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.

Custom Modification

Custom

Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.

On-Site Installation

Support

Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.

Lifecycle Support

Lifecycle

Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.

Free samples available for orders over $50K

Validated against your KPIs before full production commitment.

Contact Engineering Team

-- Get In Touch

Request a Technical Consultation & Quote

Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.

Address

No. 377 Bansongyuan Road, Huangpu District, Shanghai, China

Free Sample Program

Orders over $50K qualify for free product samples

Test against your KPIs before full production commitment. Ask our engineers for details.

Product Inquiry Form

Regarding: Koyo Timken NSK N318em N319em N320em Cylindrical Roller Bearing

Response within 24 hours · Free engineering consultation · No obligation

ISO 9001 · TS 16949 · Authorized SKF Partner · Since 1998

SKF Authorized Engineering Partner

Need technical support or a custom solution?

15+ certified engineers ready to help. Response within 24 hours.