NSK KOYO N203EM Cylindrical Roller Bearing, High Precision, 17x40x12mm
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 Spec / USP |
|---|---|
| Ultra-Precise Radial Load Capacity | P0–P2 precision grades; ideal for high-speed spindles & gearboxes |
| Robust Bearing Steel Construction | Chrome steel (GCr15) with strict heat treatment per ISO 634/ISO 281 |
| Optimized Internal Geometry | NUP-type fixed-locating design: inner ring double flange + outer ring single flange + loose rib |
| Low-Friction, High-Efficiency Operation | Ground rollers & raceways ensure <0.002mm form tolerance and minimal torque variation |
| Open Design for Flexible Lubrication | Compatible with oil, grease, or dry-film lubricants — no seal drag loss |
| Global Brand Compatibility | Cross-interchangeable with SKF, NTN, Timken, and FAG equivalents (e.g., SKF NUP203E) |
| Wide Size Range & OEM Support | 17×40×16 mm standard; scalable to 35–400 mm OD; full OEM/ODM service available |
| Strict Quality Assurance | 100% dimensional inspection + noise testing + vibration screening (ISO 15242-3 compliant) |
| Industry-Proven Reliability | Used in CNC machines, wind turbines, industrial pumps, and automotive transmissions |
| Frequently Asked Questions | Q: Is this bearing suitable for axial loads? A: NUP203EM handles limited bi-directional axial loads due to its fixed-locating structure. For pure thrust, consider NU/NJ+NUP combos. |
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