Manufactured by CHG Bearing, the 1797/2500K9 is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 2500 mm bore diameter, a 2920 mm outer diameter, and a 260 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.
1797/2500K9 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 1797/2500K9 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2500 mm |
| Width (B) | 260 mm |
| Outer Diameter (D) | 2920 mm |
| Inner/Outer Ring Height H1 | 240 mm |
| End-face Height Difference h | 60 mm |
| Number of Lubrication Holes n1 | 36 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3060 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2622 mm |
| Lubrication Port Thread / Size Φ1 | ZG1/4 |
| Inner Ring Mounting Hole Count n2 | 36 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 40 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 40 |
| Gear Data | |
| Gear Module m | 18 mm |
| Gear Tip Diameter De | 3258 mm |
| Number of Gear Teeth z | 179 |
| Gear Face Width b | 190 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 5556 kg |
1797/2500K9 2920 mm 2500 mm 260 mm 3060 mm 2622 mm Frequently Asked Questions about 1797/2500K9 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 1797/2500K9 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.
Every production batch of CHG Bearing 1797/2500K9 Crossed 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.
Absolutely. The CHG Bearing 1797/2500K9 Crossed Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 1797/2500K9, FAG 1797/2500K9, NSK 1797/2500K9. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
When fitting 1797/2500K9 over a 2500 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
