Manufactured by CHG Bearing, the 6397/4830 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 4830 mm bore diameter, a 5480 mm outer diameter, and a 336 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.
6397/4830 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6397/4830 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 4830 mm |
| Width (B) | 336 mm |
| Outer Diameter (D) | 5480 mm |
| Inner/Outer Ring Height H1 | 210 mm |
| End-face Height Difference h | 50 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4160 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3835 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 96 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 39 |
| Outer Ring Mounting Hole Count n3 | 96 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 22 mm |
| Gear Tip Diameter De | 3630 mm |
| Number of Gear Teeth z | 166 |
| Gear Face Width b | 164 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 4535 kg |
6397/4830 5480 mm 4830 mm 336 mm 4160 mm 3835 mm Frequently Asked Questions about 6397/4830 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 6397/4830 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.
The CHG Bearing 6397/4830 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.
To match diverse operational dynamics, CHG Bearing supplies 6397/4830 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Sourcing 6397/4830 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Three-row Cylindrical Roller Slewing Bearings.
