Manufactured by CHG Bearing, the NNCF4996V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 480 mm bore diameter, a 650 mm outer diameter, and a 170 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.
NNCF4996V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNCF4996V |
| Brand | CHG® |
| Rolling Element | Cylindrical Roller |
| Construction | Double Row; Full Complement (No Cage) |
| Characteristics | |
| Bearing Type | Double-Row Full-Complement Cylindrical Roller Bearing |
| Series | NNCF |
| Load Direction | Radial |
| Limiting Speed — Grease (r/min) | 180 r/min |
| Limiting Speed — Oil (r/min) | 380 r/min |
| Dimensions | |
| Bore Diameter (d) | 480 mm |
| Width (B) | 170 mm |
| Outer Diameter (D) | 650 mm |
| Raceway Diameter Ew | 605.5 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 3350 kN |
| Basic Static Radial Load Rating C0r (kN) | 8900 kN |
| Material | |
| Mass (kg) | 167 kg |
| Chamfer Dimension r1,2 (min.) | 5 min. mm |
| Chamfer Dimension r3,4 (min.) | N/A min. mm |
NNCF4996V 480 mm 650 mm 170 mm Frequently Asked Questions about NNCF4996V Full Complement Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges NNCF4996V with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
The CHG Bearing NNCF4996V 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.
To match diverse operational dynamics, CHG Bearing supplies NNCF4996V with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Quality starts with raw material selection: CHG Bearing crafts NNCF4996V 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.
