Cylindrical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Cylindrical Roller Bearing
High Precision NJ318EM Cylindrical Roller Bearing – Premium Quality, Tight Tolerances
Basic Info
| Bore Size | 15–90 mm |
|---|---|
| Outer Dimension | 35–180 mm |
| Specification | 90×190×43 mm |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
| Lubrication | Grease or Oil |
Introduction
High-precision cylindrical roller bearing (Model NUP318EM), ideal for heavy radial loads. Made of premium bearing steel, features non-aligning design, separated structure, and supports P0–P2 precision grades. Suitable for OEM/ODM applications with reliable grease or oil lubrication.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
High Precision Nj318em NF318em Nu318em Series Cylindrical Roller Bearing
| Description | Key Selling Points |
|---|---|
| Model: NUP318EM — precision-engineered for high radial load & rigidity | Optimized internal clearance, enhanced cage guidance, P0–P2 precision grades available |
| Dimensions: 90×190×43 mm (bore × OD × width) | Exact ISO/NJ standard fit — seamless replacement for SKF NJ318E/NF318/NUP318 |
| Material: High-carbon chromium bearing steel (GCr15) | Hardness HRC 61–65, vacuum-melted, low non-metallic inclusions |
| Load Direction: Pure radial — with axial location capability (NUP type) | Fixed-locating design ideal for gearboxes, motors, and industrial drives |
| Lubrication: Grease or oil compatible | Prefilled with ISO VG 68 synthetic grease (optional); sealed or open variants |
| Vibration Class: Z1V1 to Z3V3 | Ultra-low noise & vibration — certified for precision machine tools & pumps |
| Separable Design | Easy installation/maintenance — inner ring, outer ring, and roller-cage sets sold separately |
| OEM/ODM Support & 100,000 pcs/month capacity | SKF-compatible drawings, custom marking (BDL trademark), fast lead time |
| Origin & Compliance: Made in China, HS Code 8482500090 | ISO 9001 certified production; full traceability & test reports provided |
| Applications: Wind turbines, mining conveyors, rolling mills, CNC spindles | Proven in harsh environments — >15,000 hr L10 life under rated load |
Why choose this over generic alternatives? Unlike budget clones, our NUP318EM features micro-ground raceways, optimized roller profiling, and strict vibration control — delivering 2.3× longer service life vs. standard P0-grade equivalents.
FAQ: Q: Is it interchangeable with SKF NJ318EM? A: Yes — identical dimensions, tolerances, and load ratings. Q: Can you supply with SKF packaging/logos? A: Yes, under OEM agreement. Q: What’s the max operating temperature? A: 120°C continuous (grease-lubricated), 150°C short-term.
Ready to verify performance data or request a sample? Contact us now for technical specs, CAD files, and bulk pricing.
Product Summary
- Product Name
- High Precision NJ318EM Cylindrical Roller Bearing – Premium Quality, Tight Tolerances
- 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
High Precision NJ318EM Cylindrical Roller Bearing – Premium Quality, Tight Tolerances
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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