Koyo N312em N313em N314em Cylindrical Roller Bearing
Ensure smooth, reliable operation in your machinery with this high-performance Koyo Cylindrical Roller Bearing set, featuring N312em, N313em, and N314em models designed to minimize downtime and extend equipment lifespan. Engineered for heavy radial loads and high-speed applications, these bearings deliver consistent performance even in demanding industrial environments, letting you focus on productivity without unexpected interruptions.
- Precision-engineered EM-type cage design reduces friction and heat buildup, ensuring stable rotation under continuous use
- Direct replacement for worn units in pumps, gearboxes, and electric motors, simplifying maintenance and reducing repair time
Looking for Reliable Koyo N312em/N313em/N314em Cylindrical Roller Bearings? Here’s What Matters
Industrial buyers often face frustration when sourcing bearings—型号 confusion across metric and imperial standards, frequent downtime from premature wear, and the hassle of coordinating with multiple suppliers for different brands. These challenges aren’t just inconvenient; they directly impact your equipment’s productivity and maintenance costs.
Built for Consistent Performance in Demanding Applications
Our Koyo N312em, N313em, and N314em cylindrical roller bearings address these pain points through ISO 9001-certified manufacturing processes and our extensive supply chain network that covers both international and domestic brands. Designed for heavy radial load applications like gearboxes, electric motors, and industrial machinery, these bearings deliver reliable performance where precision and durability matter most.
Optimal Performance in High-Load Industrial Environments
Cylindrical roller bearings excel in applications with high radial loads and moderate speeds, such as conveyor systems, pumps, and steel mill equipment. The N312em, N313em, and N314em series are engineered to handle dynamic forces while maintaining dimensional stability, making them suitable for continuous operation in temperatures ranging from -30°C to 120°C.
Engineering Details That Ensure Longevity
The key to these bearings’ performance lies in their precision design. The cylindrical roller configuration distributes load evenly across the raceways, reducing stress concentrations and extending service life. Manufactured from high-grade chrome steel, the components undergo严格的 heat treatment to achieve surface hardness of 58-62 HRC, ensuring resistance to wear and deformation under heavy loads. The EM design features optimized internal geometry, balancing load capacity with rotational efficiency for smooth operation even in misaligned conditions up to 2 minutes of arc.
Why Bearing Quality Impacts Total Cost of Ownership
Choosing the right cylindrical roller bearing directly affects your bottom line. Inferior bearings with substandard material or imprecise tolerances often fail prematurely, leading to unplanned downtime, replacement costs, and potential damage to adjacent components. Our bearings, adhering to international dimensional standards, minimize these risks by providing consistent performance and predictable service life, ultimately reducing long-term maintenance expenses.
Quality You Can Rely On
Every bearing in our inventory undergoes thorough inspection, including dimensional accuracy checks, hardness testing, and surface finish evaluation, to ensure compliance with industry standards. We maintain a comprehensive quality management system certified to ISO 9001, covering raw material sourcing through final packaging. All bearings come with a standard warranty against manufacturing defects, and our technical team is available to assist with installation and troubleshooting support.
Packaging & Shipping
- Standard industrial packaging with protective grease coating to prevent corrosion during storage and transit
- Ready stock availability for prompt dispatch within 24-48 hours of order confirmation
- Flexible shipping options including express courier, air freight, and sea freight to meet your delivery timeline
- Low minimum order quantity starting from single units, supporting both maintenance needs and production requirements
Request a Quote for Koyo N312em/N313em/N314em Bearings
Whether you need a single replacement bearing or bulk quantities for production, we can fulfill your requirements. Provide us with the specific model (N312em, N313em, or N314em), quantity, and delivery location, and our team will respond with competitive pricing and availability within 2 business hours.
Frequently Asked Questions
Q: Can you supply other brands or models of cylindrical roller bearings?
A: Yes, we offer comprehensive sourcing for all major international brands (including SKF, NSK, NTN, NACHI, FAG) and domestic manufacturers, supporting custom specifications as required.
Q: How do I confirm if these bearings will fit my equipment?
A: Provide your equipment model or existing bearing dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the Koyo N312em/N313em/N314em series.
Q: What is your warranty policy for these bearings?
A: We provide a standard warranty covering manufacturing defects for 12 months from the date of delivery, with specific terms detailed in our sales contract.
Q: What is the minimum order quantity for these bearings?
A: We accept orders starting from 1 unit, allowing flexibility for emergency repairs or small-scale projects.
Q: How quickly can you ship the N312em/N313em/N314em bearings?
A: Stock items are shipped within 24-48 hours; for large orders or special specifications, lead times will be confirmed at the time of quotation.
Q: Do you offer OEM/ODM services for cylindrical roller bearings?
A: Yes, we support custom bearing production according to customer-provided drawings, specifications, or samples, including material selection and special lubrication options.
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.
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- Product Name
- Koyo N312em N313em N314em Cylindrical Roller Bearing
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
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 |
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.
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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.
The engineering partner advantage
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Koyo N312em N313em N314em Cylindrical Roller Bearing
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