Manufactured by CHG Bearing, the NCF2948V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 240 mm bore diameter, a 320 mm outer diameter, and a 48 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
NCF2948V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NCF2948V |
| Brand | CHG® |
| Rolling Element | Cylindrical Roller |
| Construction | Single Row; Full Complement (No Cage) |
| Characteristics | |
| Bearing Type | Single-Row Full-Complement Cylindrical Roller Bearing |
| Series | NCF |
| Load Direction | Radial |
| Limiting Speed — Grease (r/min) | 450 r/min |
| Limiting Speed — Oil (r/min) | 850 r/min |
| Dimensions | |
| Bore Diameter (d) | 240 mm |
| Width (B) | 48 mm |
| Outer Diameter (D) | 320 mm |
| Raceway Diameter Ew | 303 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 580 kN |
| Basic Static Radial Load Rating C0r (kN) | 1140 kN |
| Material | |
| Mass (kg) | 10.4 kg |
| Chamfer Dimension r1,2 (min.) | 2.1 min. mm |
| Chamfer Dimension r3,4 (min.) | 1.5 min. mm |
NCF2948V 320 mm 48 mm 240 mm Frequently Asked Questions about NCF2948V Full Complement Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing NCF2948V is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing NCF2948V correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Standard batches of CHG Bearing NCF2948V conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Quality starts with raw material selection: CHG Bearing crafts NCF2948V inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
