High Precision N224EM/NJ224EM Cylindrical Roller Bearing
Basic Info.
| Inner Diameter | 120 mm |
| Outer Diameter | 215 mm |
| Width | 40 mm |
Introduction
NUP224EM cylindrical roller bearing made of bearing steel, radial load direction, open seal type, precision rating P0–P2, single row, separated design. Suitable for OEM/ODM applications.High Precision Mechanical Bearing N224EM NJ224EM Cylindrical Roller Bearing
| Description | Key Specification |
|---|---|
| Precision & Grade | P0–P2 ultra-precision rating (ABEC-1 to ABEC-9 equivalent), ideal for high-speed, low-vibration applications |
| Load Capacity | Radial-only, high-load cylindrical design with optimized roller-cage geometry |
| Dimensions (mm) | 120 × 215 × 40 — compact yet robust for space-constrained OEM machinery |
| Material & Hardness | GCR15 bearing steel, hardened to HRC 60–64, vacuum-degassed for fatigue resistance |
| Sealing & Lubrication | Open type — compatible with oil, grease, or dry-film lubricants per operational demand |
| Separability | Fully separated design (NUP224EM) — simplifies mounting, maintenance & axial location |
| Application Scope | Wind turbines, gearboxes, industrial pumps, CNC spindles, and heavy-duty conveyors |
| Quality Assurance | ISO 9001 certified production; 100% dimensional & noise testing; traceable batch records |
| SKF-Compatible Advantage | Exact interchange with SKF N224EM/NJ224EM — same load ratings, tolerances & mounting interfaces |
| FAQ: Why choose this over generic brands? | Superior roller profile grinding, tighter raceway roundness (<0.8μm), and lower vibration (Z2V2 level) ensure longer service life vs. standard P0 imports |
Ready to verify compatibility or request a sample? Contact us today for technical support and volume pricing — our engineers respond within 2 business hours.
- Product Name
- High Precision N224EM/NJ224EM 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.
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.
The engineering partner advantage
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High Precision N224EM/NJ224EM Cylindrical Roller Bearing
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