Manufactured by CHG Bearing, the 6397/2800 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.
6397/2800 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6397/2800 |
| 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 | 230 mm |
| End-face Height Difference h | 10 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4340 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3960 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 80 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 45 |
| Outer Ring Mounting Hole Count n3 | 80 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 45 |
| Gear Data | |
| Gear Module m | 22 mm |
| Gear Tip Diameter De | 4527.6 mm |
| Number of Gear Teeth z | 203 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 5850 kg |
6397/2800 3260 mm 2800 mm 4340 mm 3960 mm 220 mm Frequently Asked Questions about 6397/2800 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing 6397/2800 Three-row Cylindrical Roller Slewing 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 6397/2800 with a precision bore diameter (d) of 2800 mm, an outside diameter (D) of 3260 mm, and a nominal ring width (B) of 220 mm. This configuration yields an effective cross-sectional wall thickness of 230.0 mm and an envelope ratio (D/d) of 1.16, delivering compact rigidity for OEM machinery housings.
Model 6397/2800 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.
The CHG Bearing 6397/2800 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
