Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
NSK N236em Nj236em Nu236em N238em Nj238em Nu238em Cylindrical Roller Bearing
Keep your machinery running smoothly with reliable NSK Cylindrical Roller Bearing solutions designed to minimize downtime and extend equipment life. This precision-engineered lineup includes models N236EM, NJ236EM, NU236EM, N238EM, NJ238EM, and NU238EM, each optimized for high radial load capacity and consistent performance under demanding conditions.
- Enhanced EM design reduces friction and heat buildup, ensuring cooler operation during extended use
- Versatile NJ and NU configurations accommodate axial loads in both directions, adapting to diverse application needs
- Precision-ground raceways and rollers deliver quiet, vibration-free performance for sensitive machinery
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
Looking for Reliable Cylindrical Roller Bearings? Here’s What Matters
Bearings are critical components, yet finding the right replacement can be frustrating when faced with mismatched dimensions or unreliable quality. Many procurement teams struggle with limited supplier options, forcing them to source from multiple vendors and risk delays. Even small issues like incorrect load ratings or poor material quality can lead to unexpected downtime in industrial applications.
Construido para un rendimiento fiable y a largo plazo
Our cylindrical roller bearings, including models N236em, Nj236em, Nu236em, N238em, Nj238em, and Nu238em, address these challenges through ISO 9001-certified manufacturing processes and a comprehensive product range. Whether you need standard dimensions or custom specifications, our extensive inventory ensures quick access to the bearings you need, reducing lead times for critical machinery in sectors like steel冶金 and automation equipment. Designed for high radial load applications, these bearings excel in environments with moderate speeds and minimal axial loads. Common uses include gearboxes, electric motors, and conveyor systems in mining and construction machinery. Their robust construction handles continuous operation under varying temperatures, making them suitable for both indoor industrial settings and outdoor heavy equipment. Detalles de Ingeniería que Importan
Cylindrical roller bearings are defined by their ability to distribute radial loads evenly across the rolling elements. The N, NJ, and NU designations indicate different cage and flange configurations: N-type bearings offer two fixed flanges on the outer ring, NJ-types feature a fixed flange on the outer ring and a loose flange on the inner ring, while NU-types have two fixed flanges on the inner ring. This versatility allows for axial displacement in one direction, accommodating thermal expansion in rotating shafts. Precision-machined raceways and controlled surface hardness ensure consistent performance and resistance to wear, even under heavy loads. Por qué la selección de rodamientos afecta el costo total
Choosing the right cylindrical roller bearing directly impacts operational costs. A properly sized bearing with adequate dynamic load rating (C) will outlast an underspecified alternative, reducing replacement frequency and maintenance labor. Inferior bearings often fail prematurely due to substandard materials or manufacturing defects, leading to unplanned downtime and potential damage to adjacent components. By prioritizing quality and correct specification, you minimize total cost of ownership over the equipment lifecycle. Calidad en la que puedes confiar
Our manufacturing and testing processes adhere to ISO 9001 standards, ensuring each bearing meets strict dimensional and performance criteria. Raw materials undergo thorough inspection before production, and finished products are tested for hardness, surface finish, and dimensional accuracy. We stand behind our products with a warranty covering manufacturing defects, and our ability to source from a wide range of brands—including NSK and other international manufacturers—means we can fulfill orders according to your specific brand or standard requirements. Embalaje industrial estándar con envoltura protectora para prevenir daños durante el transporte
Disponible en stock para despacho inmediato en la mayoría de los modelos
Opciones de envío flexibles que incluyen mensajería exprés, transporte aéreo y transporte marítimo
Baja cantidad mínima de pedido para respaldar tanto el mantenimiento a pequeña escala como las grandes tiradas de producción
Whether you need a single replacement bearing or bulk quantities, provide us with the model number, dimensions (d x D x B), and required quantity, and we’ll promptly deliver a competitive quote. Our team can also assist with cross-referencing part numbers across different brands to ensure compatibility with your equipment. Preguntas Frecuentes
Q: Do you supply bearings from other brands besides those listed? A: Yes, we offer a comprehensive range of bearings from various international and domestic brands. We can source specific models according to your requirements. Q: ¿Cómo puedo confirmar si este rodamiento se ajusta a mi equipo?
A: Provide the original equipment manufacturer (OEM) part number or the critical dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility. P: ¿Cuál es su política de garantía para estos rodamientos? A: We provide a warranty against manufacturing defects. The specific duration and terms are outlined in our sales agreement. P: ¿Cuál es la cantidad mínima de pedido?
A: We accept small orders with low minimum quantities, making it easy to source both individual replacement parts and bulk requirements. P: ¿Cuánto tiempo tarda el envío?
A: Los artículos en stock se envían dentro de 1-2 días hábiles. El tiempo de entrega depende de su ubicación y del método de envío elegido.
Q: Can you provide custom bearings? A: Yes, we support OEM and ODM customization based on your drawings or specific technical specifications. Ready to order or need a quote?Where This Cylindrical Roller Bearing Performs Best
Packaging & Shipping
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Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Product Summary
- Product Name
- NSK N236em Nj236em Nu236em N238em Nj238em Nu238em 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
NSK N236em Nj236em Nu236em N238em Nj238em Nu238em Cylindrical Roller Bearing
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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