Manufactured by CHG Bearing, the NNCF5068V is a precision Full Complement Cylindrical Roller Bearings. Key dimensional parameters include a 340 mm bore diameter, a 520 mm outer diameter, and a 243 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.
NNCF5068V - Full Complement Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NNCF5068V |
| 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) | 280 r/min |
| Limiting Speed — Oil (r/min) | 530 r/min |
| Dimensions | |
| Bore Diameter (d) | 340 mm |
| Width (B) | 243 mm |
| Outer Diameter (D) | 520 mm |
| Raceway Diameter Ew | 486 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 4250 kN |
| Basic Static Radial Load Rating C0r (kN) | 8750 kN |
| Material | |
| Mass (kg) | 177 kg |
| Chamfer Dimension r1,2 (min.) | 5 min. mm |
| Chamfer Dimension r3,4 (min.) | N/A min. mm |
NNCF5068V 340 mm 520 mm 243 mm Frequently Asked Questions about NNCF5068V Full Complement Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model NNCF5068V is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 340 mm) and steep thermal gradients between inner and outer rings.
As standard production, CHG Bearing subjects NNCF5068V to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Every production batch of CHG Bearing NNCF5068V 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.
Standard batches of CHG Bearing NNCF5068V 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.
