Description
Key Specifications & Advantages of NF311EM Cylindrical Roller Bearing
| Description | Core Value |
|---|---|
| Model: NF311EM (Nu311EM/NUP311EM compatible) | Interchangeable with SKF NU311, NUP311 — seamless OEM replacement |
| Bore × OD × Width: 55 × 120 × 29 mm | Precise metric dimensions ensure drop-in fit in industrial gearboxes & motors |
| Material: High-carbon chromium bearing steel (GCr15) | Superior hardness & fatigue resistance — 2× service life vs. standard grade |
| Precision Rating: P0/P6 optional | P6 grade meets SKF ABEC-3 tolerance — ideal for high-speed applications |
| Lubrication: Grease or oil-ready | Pre-greased with NLGI #2 lithium complex — ready for immediate installation |
| Load Capacity: High radial, limited axial (N-type) | Optimized roller guidance for heavy-duty conveyor & pump shafts |
| Vibration Grade: Z2V2 certified | Low-noise operation — perfect for HVAC fans and precision machinery |
| Separated Design | Easy mounting/dismounting — reduces downtime during maintenance |
| OEM/ODM Support & 100K/mo Capacity | Fast lead time & custom branding — trusted by Tier-1 European distributors |
| Origin: China (ISO 9001 & IATF 16949 certified) | Rigorous 100% dimensional & rotation testing — zero defect guarantee |
Engineered for reliability where SKF performance is expected — but at 30% lower TCO. Used in wind turbine gearboxes, mining conveyors, and textile machinery across EU & ASEAN. Unlike generic brands, BDL’s NF311EM features micro-ground raceways, optimized internal clearance (C3 optional), and anti-corrosion surface treatment. FAQ: Yes — fully compatible with SKF mounting dimensions and load charts. Yes — available with laser-engraved BDL+SKF cross-reference marking. Yes — technical datasheets and RoHS/REACH reports provided instantly. Ready to verify compatibility or request a sample? Contact us now for your free bearing selection support.
