Manufactured by CHG Bearing, the 314719C is a precision Four-Row Cylindrical Roller Bearings. Key dimensional parameters include a 280 mm bore diameter, a 390 mm outer diameter, and a 275 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.
314719C - Four-Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 314719C |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Cylindrical Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 280 mm |
| Width (B) | 275 mm |
| Outer Diameter (D) | 390 mm |
| Bore Diameter Tolerance | -0.035 – 0 mm |
| Outside Diameter Tolerance | -0.040 – 0 mm |
| Width Tolerance | -0.35 – 0 mm |
| Enveloping Circle Diameter Fw | 308 mm |
| Inner Ring Chamfer | 1.5 min mm |
| Outer Ring Chamfer | 1.5 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2860 kN |
| Basic Static Load Rating C0 (kN) | 6450 kN |
| Material | |
| Mass (kg) | 102 kg |
| Ring Material | Bearing Steel / Case-Hardened Steel |
| Rolling Element Material | Bearing Steel / Case-Hardened Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 11 mm |
| Lubrication Holes (qty × Ø mm) | 8 × Ø6 |
314719C 390 mm 280 mm 308 mm 275 mm Frequently Asked Questions about 314719C Four-Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 314719C over a 280 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
In its sealed configuration (Open Type), CHG Bearing pre-charges 314719C 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.
As standard production, CHG Bearing subjects 314719C 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 314719C Four-Row 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.
