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Cylindrical Roller Bearing
NTN N2311EM Cylindrical Roller Bearing – High Precision, Japan Made
Basic Info
| Bore Diameter | 15–90 mm |
|---|---|
| Outer Diameter | 35–180 mm |
| Width/Thickness | 43 mm |
| Structure | Cylindrical Roller |
| Material | |
| Lubrication | Grease or Oil |
Introduction
Cylindrical roller bearing 307 (model NUP2311EM), made of high-grade bearing steel, offers high radial load capacity and precision ratings from P0 to P2. Designed for OEM/ODM applications, it features separated construction and standard dimensions 55×120×43 mm.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
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Free Sample for Orders > $50K
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Product Details
NTN Japan-Made High-Precision Cylindrical Roller Bearings (NUP2311EM Series)
| Description | Key Value |
|---|---|
| Precision & Origin | Japan-made, P0–P2 precision grades (ISO/JIS), superior dimensional stability vs. generic China-made |
| Bearing Type | NUP series — fixed double-flanged outer ring + loose inner ring; enables axial location + high radial load capacity |
| Dimensions (mm) | 55 × 120 × 43 (Bore × OD × Width); fits standard 55mm shafts in industrial gearboxes & motors |
| Material & Hardness | High-carbon chromium bearing steel (SUJ2/GCr15), heat-treated to HRC 60–64 for extended fatigue life |
| Lubrication Flexibility | Pre-greased or oil-lubricated compatible; sealed variants available upon request |
| Vibration Control | Z2V2 / Z3V3 low-noise grade options — ideal for precision machine tools and servo-driven systems |
| Separability | Fully separable design — simplifies mounting, maintenance, and replacement in tight spaces |
| Load Capacity | Optimized for heavy radial loads + limited bidirectional axial thrust (NUP configuration) |
| Quality Assurance | 100% ISO 9001-certified production; batch-tested for vibration, clearance, and surface finish |
| Typical Applications | Industrial gearboxes, wind turbine yaw/pitch systems, mining conveyors, CNC lathes, paper mills |
Why choose NTN NUP2311EM over alternatives? Unlike generic cylindrical rollers, it delivers Japan-engineered consistency, tighter tolerances (±1.5μm bore runout), and proven reliability at 15,000+ hr L10 life under rated load. BDL-branded but manufactured under NTN’s strict OEM protocols — no compromise on metallurgy or process control.
FAQ: Q: Is this interchangeable with SKF NJ2311E? A: Yes — identical boundary dimensions & load ratings; NTN offers better thermal stability above 120°C. Q: Can you supply P4 precision? A: Yes — lead time +2 weeks. Q: Are samples available? A: Yes — free sample (1 pc) with freight collect.
Ready to verify performance in your application? Send your inquiry now — our SKF-trained engineers will recommend the optimal variant (seal type, cage material, lubricant, precision grade) and provide full test reports.
Product Summary
- Product Name
- NTN N2311EM Cylindrical Roller Bearing – High Precision, Japan Made
- 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
NTN N2311EM Cylindrical Roller Bearing – High Precision, Japan Made
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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