High Precision N304EM Cylindrical Roller Bearing – Factory Direct
Basic Info
| Bore Diameter | 15–90 mm |
|---|---|
| Outer Diameter | 35–180 mm |
| Width | 15 mm (e.g., 20×52×15 mm) |
Introduction
Cylindrical roller bearing 307, model NUP304EM, made of bearing steel. Designed for radial load, non-aligning, separated structure. Precision grades P0–P2, lubricated with grease or oil. Suitable for OEM/ODM applications. Origin: China. HS Code: 8482500090.
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Description
Key Specifications & Why SKF-Grade Buyers Choose This Cylindrical Roller Bearing
| Description | Core Value |
|---|---|
| Model Range: N304EM / NJ304EM / NF304EM / NU304EM / NUP304EM | Interchangeable high-precision series — ideal for OEM retrofit & global standard compliance |
| Bore Size: 15–90 mm | OD: 35–180 mm | Spec: 20×52×15 mm | Compact yet robust design — fits tight-space industrial gearboxes & motors |
| Material: Premium GCR15 Bearing Steel (SKF-equivalent) | Enhanced fatigue life & dimensional stability under dynamic loads |
| Precision Grades: P0, P6, P5, P4, P2 | Meets ISO/ABEC standards — P2 option available for high-speed spindles |
| Vibration Levels: Z1V1 to Z3V3 | Ultra-low noise operation — critical for CNC machines & medical equipment |
| Lubrication: Grease or Oil Compatible | Flexible maintenance — supports sealed & open-system applications |
| Structure: Separated, Non-Aligning Cylindrical | Easy installation & axial location control — reduces assembly time by ~30% |
| Load Direction: Pure Radial | Optimized for heavy-duty conveyor systems, pumps & compressors |
| Origin & Certification: Made in China | HS Code 8482500090 | BDL Brand | ISO 9001 audited production — full traceability & batch testing reports |
| OEM/ODM Service + Carton/Pallet Packaging | Custom branding, labeling & logistics-ready — zero MOQ for sample orders |
Applications: Industrial gearboxes, electric motors, wind turbine yaw systems, steel mill rollers, and precision machine tools.
Why It Stands Out: Unlike generic imports, every batch undergoes 100% dimensional inspection, hardness verification (HRC 60–64), and dynamic load testing — matching SKF’s baseline performance at 40% lower TCO.
FAQ: Q: Is NUP304EM pre-lubricated? A: Yes — standard with lithium-based grease (NLGI #2). Q: Can it replace SKF NU304E? A: Fully interchangeable (same ABEC-1 tolerances, cage design & load ratings). Q: What’s the max speed at P5 grade? A: 12,000 rpm (with oil mist lubrication).
Ready to validate performance in your application? Send your inquiry now — get free technical support + sample lead time within 24h.
