Description
NTN Japan-Made High-Precision Cylindrical Roller Bearings (NUP2328EM Series)
| Description | Key Highlights |
|---|---|
| Model & Precision | NUP2328EM, P0–P2 precision grades — ultra-low vibration (Z1V1 to Z3V3), ideal for high-speed spindles |
| Dimension & Structure | 130×280×93 mm, cylindrical non-aligning design with separable rings for easy mounting |
| Material & Durability | High-carbon chromium bearing steel (JIS SUJ2), heat-treated for >2M hrs L10 life |
| Load Capacity | Optimized radial load handling — 30% higher dynamic rating vs. standard ISO 281 bearings |
| Lubrication Flexibility | Compatible with both grease and oil — pre-lubricated options available for maintenance-free operation |
| Origin & Standards | Manufactured in Japan under NTN’s strict JIS B 1514-1 quality control; compliant with ISO 15, ABEC-1 to ABEC-9 |
| Applications | Industrial gearboxes, wind turbine main shafts, CNC machine tool spindles, rolling mill stands |
| Differentiation vs. Competitors | EM (Electric Motor) series: lower noise, tighter internal clearance control, and superior cage guidance vs. generic N2328 or NU2328 |
| Quality Assurance | 100% dimensional inspection, ultrasonic flaw detection, and batch traceability (QR-coded packaging) |
| FAQ | Q: Is this interchangeable with SKF NJ2328E? A: Yes — identical boundary dimensions and load ratings; NTN EM-series offers enhanced thermal stability. Q: Can it replace older NUP2328? A: Yes — same interchangeability per ISO 104, with improved cage material (polyamide-reinforced brass). |
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