NSK KOYO N203EM Cylindrical Roller Bearing, High Precision
Basic Info
| Inner Diameter | 17 mm |
|---|---|
| Outer Diameter | 40 mm |
| Width | 16 mm |
Introduction
Cylindrical roller bearing NUP203EM, made of bearing steel, radial load type, open seal, single row, precision grades P0–P2. Suitable for OEM/ODM applications. Lubrication: oil, grease or dry. Outer dimension range: 35–400 mm. Origin: China. HS Code: 8482500090.
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Description
NSK Koyo NUP203EM Cylindrical Roller Bearing – High-Precision Radial Solution
| Description | Key Value |
|---|---|
| Precision & Grade | P0–P2 (ABEC-1 to ABEC-9 equivalent), ultra-low vibration, ideal for high-speed spindles |
| Dimensions (mm) | 17 × 40 × 16 — compact yet robust radial load capacity |
| Material | High-carbon chromium bearing steel (GCR15/SAE52100), vacuum-melted & heat-treated |
| Load Capacity | Radial-only, high rigidity, optimized for heavy-duty industrial rotation |
| Design Type | NUP (fixed axial location on both sides), non-aligning, separated for easy mounting |
| Seal & Lubrication | Open design — compatible with oil, grease, or dry-film lubricants |
| Applications | Machine tools, gearboxes, pumps, compressors, textile & automotive equipment |
| Quality Assurance | 100% ISO 9001 & IATF 16949 certified; batch-tested for noise, torque & dimensional accuracy |
| Differentiator vs. Generic Brands | Japanese engineering standards + Chinese cost efficiency — 30% longer L10 life vs. standard P0 |
| FAQ: Can it replace SKF NU203 or NJ203? | Yes — identical ISO dimensions & interchangeability; enhanced cage design improves fatigue resistance |
Engineered for reliability where precision meets performance — the NUP203EM delivers unmatched radial stiffness and thermal stability in demanding environments. Trusted by OEMs across Asia and Europe, this bearing combines NSK/Koyo’s decades of rolling element expertise with strict QC control. Unlike budget alternatives, its hardened raceways and optimized roller profile reduce micro-pitting and extend service intervals. Ready for immediate integration? Get your technical datasheet and bulk pricing now — send an inquiry today!
