Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
Need Technical Advice?
Reply within 12 hours · 15+ certified engineers on call
Cylindrical Roller Bearing
Timken NJ309em NJ310em NJ311em Cylindrical Roller Bearing
Experience smoother, longer-lasting machinery performance with our premium Timken Cylindrical Roller Bearing set, featuring NJ309em, NJ310em, and NJ311em models. These bearings reduce friction and minimize downtime, ensuring your equipment runs at peak efficiency even under heavy loads.
- Engineered with EM-series precision for enhanced radial load capacity and reduced heat generation
- Timken's signature cage design ensures stable roller guidance, critical for high-speed applications
- Direct replacement for industrial and automotive drivetrain systems, eliminating compatibility guesswork
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Especificaciones del Producto
Parámetro
Detalles
Idoneidad de la Aplicación
Industria
Aplicaciones Típicas
Maquinaria Industrial
Automotriz
Equipo de molino de laminación, accionamientos de transportadores
Construcción
Finding the right cylindrical roller bearings for your equipment can be challenging. Many buyers struggle with mismatched dimensions causing installation delays, or low-quality alternatives that fail prematurely under heavy loads. Sourcing from multiple suppliers for different brands only adds complexity to your procurement process. Diseñado para una Transmisión de Potencia Confiable
Our Timken NJ309em, NJ310em, and NJ311em cylindrical roller bearings address these common pain points through precision manufacturing and comprehensive supply capabilities. As a professional bearing supplier with ISO 9001 certified quality processes, we maintain extensive inventory across major international brands, allowing you to source these critical components through a single, trusted channel. Whether for industrial gearboxes, electric motors, or automotive transmissions, these bearings deliver consistent performance in high-radial-load applications. Rendimiento Óptimo en Condiciones de Trabajo Pesadas
These cylindrical roller bearings excel in applications where radial loads are primary and axial displacement is minimal. Designed to operate efficiently within typical industrial temperature ranges (-30°C to 120°C under standard conditions), they accommodate moderate speeds while maintaining dimensional stability. The NJ-series design features a single row of rollers with a cage, providing high load-carrying capacity that makes them suitable for power transmission systems in steel mills, construction equipment, and manufacturing machinery. Características clave de ingeniería explicadas
The NJ309em, NJ310em, and NJ311em models share critical design characteristics that impact performance. Their cylindrical roller geometry distributes load evenly across the raceway, reducing stress concentrations and extending service life. The “em” suffix indicates enhanced internal design features, typically including optimized roller profiles and improved cage guidance for reduced friction. Precision class manufacturing ensures tight dimensional tolerances, facilitating interchangeability with components from other major brands. Surface hardness, typically 58-62 HRC on raceways and rollers, provides the wear resistance needed for continuous operation in demanding environments. Impacto Total del Costo de la Selección de Rodamientos
Choosing the right cylindrical roller bearing directly affects your equipment’s total operating cost. Inferior bearings with substandard material hardness or imprecise dimensions often lead to premature failure, causing unplanned downtime and costly repairs. In contrast, properly specified Timken NJ-series bearings contribute to longer maintenance intervals and reduced replacement frequency. Following ISO 281 fatigue life standards, these bearings are engineered to deliver predictable performance, allowing for more accurate maintenance scheduling and lower overall lifecycle costs compared to non-precision alternatives. Aseguramiento de Calidad Que Puedes Verificar
Our commitment to quality starts with rigorous supplier selection and extends through every stage of the procurement process. All bearings undergo dimensional verification and material testing before shipping, ensuring compliance with published specifications. We provide a standard质保期 against manufacturing defects, with clear terms for replacement or return if issues arise. Our supply chain includes both自有 brand and international brand options, allowing you to select the optimal balance of performance and cost for your specific application. With substantial现货库存, we can fulfill most standard orders within 24-48 hours of confirmation. Obtenga su cotización de rodamientos de rodillos cilíndricos hoy
To receive pricing for Timken NJ309em, NJ310em, or NJ311em bearings, simply provide the specific model, required quantity, and delivery location. Our technical team can also assist with dimension verification to ensure compatibility with your equipment. With access to comprehensive brand coverage, we can also quote alternative cylindrical roller bearings if needed to meet your application requirements. Preguntas Frecuentes
Q: ¿Puede suministrar otras marcas o modelos de rodamientos de rodillos cilíndricos?
A: Yes, we support inquiries for all major brands and型号 of cylindrical roller bearings, and can supply according to your specified requirements. P: ¿Cómo puedo confirmar si estos rodamientos se ajustarán a mi equipo?
A: Provide the required dimensions (bore diameter, outer diameter, width) or existing bearing part number, and our technical team will verify compatibility with your application. P: ¿Cuál es su política de garantía para estos rodamientos? A: We provide a质保期 against manufacturing defects, with terms and duration specified in each order confirmation. Defective products covered by warranty will be replaced or refunded according to mutual agreement. Q: What is the minimum order quantity for these Timken NJ-series bearings? A: We offer low minimum order quantities, including the option for small-batch trial orders to verify performance before full-scale procurement. Q: ¿Qué tan rápido pueden enviar estos rodamientos?
A: In-stock bearings are typically shipped within 1-2 business days. Shipping time depends on the selected logistics method and destination. P: ¿Ofrecen personalización OEM/ODM para rodamientos de rodillos cilíndricos?
A: Yes, we support customization according to technical drawings or specific performance requirements for both standard and non-standard cylindrical roller bearings. Ready to order or need a quote?
Electric motors, gearboxes, pumps
Transmission systems, axle assemblies
Steel & Metallurgy
Heavy duty gearboxes, hydraulic systems
Need Timken NJ309em, NJ310em, or NJ311em Cylindrical Roller Bearings? Here’s What Matters
Packaging & Shipping
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 to start your inquiry.
Product Summary
- Product Name
- Timken NJ309em NJ310em NJ311em Cylindrical Roller Bearing
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Cylindrical Roller Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
Timken NJ309em NJ310em NJ311em Cylindrical Roller Bearing
NDA protected · Free samples for orders > $50K · Reply within 12 hours
Related Products
More Cylindrical Roller Bearing Products
Cylindrical Roller Bearing
Cylindrical Roller Bearing Nu2214em Nup2214em Nu2215em Nup2215em High Quality
Cylindrical Roller Bearing
High Precision N304EM Cylindrical Roller Bearing – Factory Direct
Cylindrical Roller Bearing