Manufactured by CHG Bearing, the 6397/3650K1 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 3650 mm bore diameter, a 4173 mm outer diameter, and a 222 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.
6397/3650K1 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 6397/3650K1 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 3650 mm |
| Width (B) | 222 mm |
| Outer Diameter (D) | 4173 mm |
| Inner/Outer Ring Height H1 | 219 mm |
| End-face Height Difference h | 54 mm |
| Number of Lubrication Holes n1 | 15 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2655 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2345 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 90 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | M36 |
| Outer Ring Mounting Hole Count n3 | 90 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 18 mm |
| Gear Tip Diameter De | 2185.2 mm |
| Number of Gear Teeth z | 122 |
| Gear Face Width b | 160 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 2517 kg |
6397/3650K1 4173 mm 3650 mm 222 mm 2655 mm 2345 mm Frequently Asked Questions about 6397/3650K1 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing 6397/3650K1 Three-row Cylindrical Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 3650 mm bore. For the 4173 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Engineered according to international ISO boundary plans, CHG Bearing supplies 6397/3650K1 with a precision bore diameter (d) of 3650 mm, an outside diameter (D) of 4173 mm, and a nominal ring width (B) of 222 mm. This configuration yields an effective cross-sectional wall thickness of 261.5 mm and an envelope ratio (D/d) of 1.14, delivering compact rigidity for OEM machinery housings.
Standard batches of CHG Bearing 6397/3650K1 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.
Each 6397/3650K1 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (3650 mm bore side) ensures perfect planar contact without edge binding.
