Manufactured by CHG Bearing, the NNCF4964V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 320 mm bore diameter, a 440 mm outer diameter, and a 118 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.
NNCF4964V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNCF4964V |
| 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) | 320 r/min |
| Limiting Speed — Oil (r/min) | 600 r/min |
| Dimensions | |
| Bore Diameter (d) | 320 mm |
| Width (B) | 118 mm |
| Outer Diameter (D) | 440 mm |
| Raceway Diameter Ew | 409 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 1620 kN |
| Basic Static Radial Load Rating C0r (kN) | 4000 kN |
| Material | |
| Mass (kg) | 55 kg |
| Chamfer Dimension r1,2 (min.) | 3 min. mm |
| Chamfer Dimension r3,4 (min.) | N/A min. mm |
NNCF4964V 320 mm 440 mm 118 mm Frequently Asked Questions about NNCF4964V Full Complement Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing NNCF4964V 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.
To safeguard CHG Bearing NNCF4964V against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (320 mm x 440 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To extend the trouble-free lifespan of CHG Bearing NNCF4964V, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for NNCF4964V, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
