Manufactured by CHG Bearing, the NNCF4956V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 280 mm bore diameter, a 380 mm outer diameter, and a 100 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.
NNCF4956V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNCF4956V |
| 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) | 380 r/min |
| Limiting Speed — Oil (r/min) | 700 r/min |
| Dimensions | |
| Bore Diameter (d) | 280 mm |
| Width (B) | 100 mm |
| Outer Diameter (D) | 380 mm |
| Raceway Diameter Ew | 353.5 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 1090 kN |
| Basic Static Radial Load Rating C0r (kN) | 2720 kN |
| Material | |
| Mass (kg) | 34 kg |
| Chamfer Dimension r1,2 (min.) | 2.1 min. mm |
| Chamfer Dimension r3,4 (min.) | N/A min. mm |
NNCF4956V 280 mm 380 mm 100 mm Frequently Asked Questions about NNCF4956V 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 NNCF4956V 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 ensure optimum performance of CHG Bearing NNCF4956V Full Complement Cylindrical Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 280 mm bore. For the 380 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Yes, 100% of NNCF4956V Full Complement Cylindrical Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Every production batch of CHG Bearing NNCF4956V Full Complement Cylindrical Roller Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
