Manufactured by CHG Bearing, the 6397/2800G2K1 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2800 mm bore diameter, a 3260 mm outer diameter, and a 220 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.
6397/2800G2K1 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6397/2800G2K1 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2800 mm |
| Width (B) | 220 mm |
| Outer Diameter (D) | 3260 mm |
| Inner/Outer Ring Height H1 | 290 mm |
| End-face Height Difference h | 25 mm |
| Number of Lubrication Holes n1 | 15 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4512 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 4112 mm |
| Lubrication Port Thread / Size Φ1 | G1/4 |
| Inner Ring Mounting Hole Count n2 | 90 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 48 |
| Outer Ring Mounting Hole Count n3 | 90 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 48 |
| Gear Data | |
| Gear Module m | 24 mm |
| Number of Gear Teeth z | 194 |
| Gear Face Width b | 231 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 8181 kg |
6397/2800G2K1 3260 mm 2800 mm 4512 mm 4112 mm 220 mm Frequently Asked Questions about 6397/2800G2K1 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model 6397/2800G2K1 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 2800 mm) and steep thermal gradients between inner and outer rings.
Quality starts with raw material selection: CHG Bearing crafts 6397/2800G2K1 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
In its sealed configuration (Open Type), CHG Bearing pre-charges 6397/2800G2K1 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.
Standard batches of CHG Bearing 6397/2800G2K1 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.
