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Cylindrical Roller Bearing
NACHI Cylindrical Roller Bearing Nu312em Nu313em Nu314em
Experience smoother, longer-lasting machinery performance with our precision-engineered NACHI Cylindrical Roller Bearing selection. Designed to reduce friction and handle heavy radial loads, these bearings minimize downtime and extend equipment life, letting you focus on productivity without unexpected interruptions.
- Nu312em, Nu313em, and Nu314em variants included for versatile shaft diameters
- EM design features optimized internal geometry for enhanced load distribution
- High-quality steel construction ensures reliable operation even in demanding industrial environments
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
Spécifications du produit
| NU312EM, NU313EM, NU314EM |
Adéquation de l'application
| Rotary shafts, gearboxes, transmission systems |
| Engine components, drive trains |
| Steel & Metallurgy |
Need Reliable Cylindrical Roller Bearings? Here’s What Matters
Selecting the right cylindrical roller bearings often means sifting through countless models across brands, only to face compatibility issues or subpar quality that leads to unexpected downtime. Many buyers struggle with finding precise replacements for NACHI NU series bearings, especially when dealing with tight production schedules.
Engineered for Consistent Performance
Our NACHI Cylindrical Roller Bearings NU312EM, NU313EM, and NU314EM address these challenges by following international dimensional standards, ensuring interchangeability with major brands. Produced under ISO 9001-certified processes, these bearings meet strict quality criteria for material strength and precision, making them suitable for high-load industrial applications like gearboxes and conveyor systems. With access to extensive inventory, we can fulfill both small and large orders without compromising on lead times.
Performance optimale dans des conditions de service intensif
These cylindrical roller bearings excel in applications with radial loads and moderate axial displacement. Designed to accommodate high rotational speeds, they perform reliably in temperatures ranging from -30°C to 120°C, making them ideal for continuous operation in manufacturing plants and automotive assembly lines. Proper selection of NU series bearings—matching bore diameter and load capacity to your equipment—directly impacts system efficiency and maintenance intervals. Caractéristiques techniques clés expliquées
The NU design features a separable inner ring, simplifying installation and replacement in confined spaces. The EM suffix indicates a brass cage, which provides durability and heat resistance under heavy loads compared to polymer alternatives. Precision-ground raceways ensure uniform load distribution, reducing vibration and extending service life. Additionally, the cylindrical roller geometry allows for slight misalignment, accommodating minor shaft deflections common in industrial machinery. Pourquoi la qualité des roulements affecte le coût total
Choosing low-quality cylindrical roller bearings may initially save costs, but frequent replacements and unplanned downtime quickly offset these savings. Our bearings undergo rigorous testing for hardness (typically 58-62 HRC) and dimensional accuracy, minimizing premature wear. By adhering to ISO 281 load rating standards, they deliver predictable service life, reducing the total cost of ownership over time. This reliability is critical for industries where equipment failure leads to production losses. Qualité sur laquelle vous pouvez compter
Every bearing in our inventory passes through strict quality control, including raw material inspection and成品尺寸 verification. We maintain ISO 9001 certification for our supply chain processes, ensuring consistency from procurement to delivery. All products come with a standard warranty covering manufacturing defects, and we offer technical support to help verify compatibility with your equipment. Whether you need NACHI-specific models or alternatives from other brands, our procurement network ensures you get the right bearings when you need them. Emballage industriel standard avec enveloppe protectrice
Expédition le jour même pour les articles en stock Options logistiques flexibles : coursier express, fret aérien ou transport maritime
Quantité minimum de commande faible, adaptée aux besoins de maintenance et de production
Obtenez votre devis de roulement aujourd'hui
Whether you need NU312EM, NU313EM, NU314EM, or other cylindrical roller bearings, provide your required model, quantity, and delivery location, and we’ll respond with pricing and availability within 24 hours. Our team can also assist with cross-referencing part numbers to ensure compatibility with your existing equipment. Foire aux questions Q: Do you supply bearings from other brands besides NACHI? A: Yes, we offer a full range of bearings from international brands including SKF, NSK, NTN, Koyo, and FAG, as well as domestic manufacturers. We can source any specified brand or model. Q: How can I confirm if these bearings fit my machine? A: Provide your equipment model or existing bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the NU312EM/313EM/314EM series. Q: Quelle est votre politique de garantie ? A: We provide a warranty against manufacturing defects. Specific terms vary by product and are detailed in our sales agreement. Q : Quelle est la quantité minimale de commande ?
A: We accept small orders, with no strict minimum quantity. Contact us for current stock availability. Q : Combien de temps prend l'expédition ?
A: In-stock items ship the same day. Delivery times depend on location: 2-5 days for express courier, 5-10 days for air freight, and 25-40 days for sea transport. Q: Pouvez-vous fournir des solutions de roulements personnalisées ?
A: Yes, we support OEM/ODM customization based on technical drawings or specifications for non-standard applications. Ready to order or need a quote?
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.
sales@example.com | +1-XXX-XXX-XXXX
Product Summary
- Product Name
- NACHI Cylindrical Roller Bearing Nu312em Nu313em Nu314em
- 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
NACHI Cylindrical Roller Bearing Nu312em Nu313em Nu314em
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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