Manufactured by CHG Bearing, the NNCF4840V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 200 mm bore diameter, a 250 mm outer diameter, and a 50 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.
NNCF4840V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNCF4840V |
| 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) | 560 r/min |
| Limiting Speed — Oil (r/min) | 1100 r/min |
| Dimensions | |
| Bore Diameter (d) | 200 mm |
| Width (B) | 50 mm |
| Outer Diameter (D) | 250 mm |
| Raceway Diameter Ew | 235.9 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 320 kN |
| Basic Static Radial Load Rating C0r (kN) | 825 kN |
| Material | |
| Mass (kg) | 5.9 kg |
| Chamfer Dimension r1,2 (min.) | 1.5 min. mm |
| Chamfer Dimension r3,4 (min.) | N/A min. mm |
NNCF4840V 200 mm 250 mm 50 mm Frequently Asked Questions about NNCF4840V Full Complement Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing NNCF4840V against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (200 mm x 250 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Each NNCF4840V produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (200 mm bore side) ensures perfect planar contact without edge binding.
Built for demanding industrial environments, the NNCF4840V Full Complement Cylindrical Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for NNCF4840V, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
