-- SKF Authorized Engineering Partner
Ensure smooth, reliable machinery operation with our high-performance NF309em Cylindrical Roller Bearing, designed to minimize downtime and extend equipment lifespan. Crafted from premium Bearing Steel with a 0° contact angle, this single-row radial bearing delivers exceptional radial load capacity—perfect for maintaining precision in high-torque applications.
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
Spécifications du produit
Paramètre
Détails
Numéro de modèle
Nombre de lignes
Simple
Direction de la charge
Roulement radial
Matériau
Acier à roulements
Angle de contact
0°
Spécification
Marque de commerce
BDL
Origine
Chine
Code SH
8482102000
Adéquation de l'application
Industrie
Applications typiques
Équipement d'automatisation
Génie mécanique
Machines industrielles
Procuring the right cylindrical roller bearings can be a challenge—mismatched dimensions lead to installation delays, while low-quality materials cause premature wear and unexpected downtime. With countless brands and型号 in the market, finding a single source for both standard and hard-to-find bearings often means coordinating with multiple suppliers. The NTN Koyo Timken NF309em, NF310em, and NF311em cylindrical roller bearings address these pain points through precision manufacturing and versatile design. Built with high-grade bearing steel and a single-row configuration optimized for radial loads, they fit seamlessly into applications requiring reliable rotation under continuous stress. Our ISO 9001 certified production processes ensure consistent quality, while our extensive inventory covers both these models and thousands of others across major international brands. Performance optimale dans les applications de charge radiale
These bearings excel in environments with pure radial loads and moderate speeds, such as belt conveyors, electric motors, and machine tool spindles. The 0° contact angle design maximizes radial load capacity, making them ideal for machinery where axial forces are minimal. Their robust construction handles vibration and shock common in industrial settings, reducing the risk of early failure compared to lower-grade alternatives. Caractéristiques d'ingénierie clés pour la fiabilité
The bearing steel material provides a high surface hardness and excellent wear resistance, critical for maintaining dimensional stability over extended service life. The 10×19×5mm specification (for model 6800) follows international dimensional standards, ensuring interchangeability with components from major manufacturers. The single-row design simplifies installation while maintaining sufficient load-bearing capacity for most light to medium-duty applications. Each unit undergoes rigorous dimensional and hardness testing before shipment, verifying compliance with industry standards. Pourquoi les roulements de qualité réduisent le coût total
Choosing the right cylindrical roller bearing directly impacts your equipment’s total cost of ownership. Inferior bearings with substandard materials or imprecise dimensions often fail early, leading to unplanned downtime, replacement parts, and labor costs. In contrast, these precision-engineered bearings minimize maintenance needs and extend service intervals. By adhering to ISO 281 fatigue life standards, they deliver predictable performance that helps avoid costly production interruptions and secondary equipment damage. Qualité sur laquelle vous pouvez compter
Our production and testing processes are ISO 9001 certified, ensuring consistent quality from raw material inspection to final product testing. Each bearing undergoes dimensional accuracy checks, surface hardness testing, and visual inspection to meet strict performance criteria. We provide a warranty against manufacturing defects, with clear terms for replacement or refund in the unlikely event of quality issues. With access to both our BDL brand and a wide range of international brands including SKF, NSK, and Timken, we can fulfill orders for specific品牌 or型号 requirements. Our substantial inventory ensures quick turnaround for most standard bearings, supporting your production schedules with minimal lead time. Options d'expédition flexibles incluant le transport express par courrier, le fret aérien et le fret maritime
Faible quantité minimale de commande prise en charge, idéale pour les petites réparations comme pour la production à grande échelle
Whether you need the NF309em, NF310em, NF311em series or other cylindrical roller bearings, provide us with your required model, dimensions, and quantity. Our team will promptly confirm availability and pricing, helping you secure the parts you need without unnecessary delays. Foire aux questions
Q: Fournissez-vous des roulements d'autres marques que BDL?
A: Yes, we offer a comprehensive range of bearings including international brands such as SKF, NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic Chinese brands. We can source specific品牌 or型号 as per your requirements. Q : Comment puis-je confirmer si ce roulement convient à mon équipement ?
A: Provide us with your equipment model or the bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NF309em series or recommend suitable alternatives. Q : Quelle est votre politique de garantie pour ces roulements ?
A: We provide a warranty against manufacturing defects. The specific warranty period and terms will be detailed in your order confirmation, with options for replacement or refund in case of quality issues. Q: What is the minimum order quantity for these cylindrical roller bearings? A: We support low minimum order quantities, including single-unit purchases for emergency repairs, as well as bulk orders for production requirements. Q : À quelle vitesse pouvez-vous expédier après la commande ?
A: Bearings in stock are typically shipped within 1-3 business days. Shipping time depends on the selected method—express courier (3-7 days), air freight (5-10 days), or sea freight (20-40 days). Q : Pouvez-vous fournir des roulements personnalisés (OEM/ODM) ?
A: Yes, we support custom bearing production based on your technical drawings or specifications, including material modifications, special dimensions, and custom packaging. Ready to order or need a quote?
6800
10×19×5mm
Conveyor systems, linear motion guides
Small gearboxes, rotating assemblies
Pumps, compressors, textile machinery
Need Reliable Cylindrical Roller Bearings? The NF309em Series Delivers Consistency
Engineered for Long-Lasting Radial Performance
Packaging & Shipping
Get a Quote for Your Cylindrical Roller Bearing Needs
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 today to discuss your requirements.
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
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.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
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.
-- Get In Touch
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.
Regarding: NTN Koyo Timken NF309em NF310em NF311em Cylindrical Roller Bearing
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SKF Authorized Engineering Partner
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