Manufactured by CHG Bearing, the 1797/3230G2K8 is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 3230 mm bore diameter, a 3970 mm outer diameter, and a 240 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.
1797/3230G2K8 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 1797/3230G2K8 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 3230 mm |
| Width (B) | 240 mm |
| Outer Diameter (D) | 3970 mm |
| Inner/Outer Ring Height H1 | 220 mm |
| End-face Height Difference h | 20 mm |
| Number of Lubrication Holes n1 | 10 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3820 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3350 mm |
| Lubrication Port Thread / Size Φ1 | 12 |
| Inner Ring Mounting Hole Count n2 | 54 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 37 |
| Outer Ring Mounting Hole Count n3 | 52 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 37 |
| Gear Data | |
| Gear Module m | 25 mm |
| Gear Tip Diameter De | 4100 mm |
| Number of Gear Teeth z | 162 |
| Gear Face Width b | 200 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 7613 kg |
1797/3230G2K8 3970 mm 3230 mm 240 mm 3820 mm 3350 mm Frequently Asked Questions about 1797/3230G2K8 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts 1797/3230G2K8 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.
Model 1797/3230G2K8 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 3230 mm) and steep thermal gradients between inner and outer rings.
Standard batches of CHG Bearing 1797/3230G2K8 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.
To ensure optimum performance of CHG Bearing 1797/3230G2K8 Crossed Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 3230 mm bore. For the 3970 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
