Manufactured by CHG Bearing, the 1797/2500K11 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.

1797/2500K11 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 1797/2500K11 |
| 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) | 5557 kg |
1797/2500K11 2920 mm 2500 mm 260 mm 3060 mm 2622 mm Frequently Asked Questions about 1797/2500K11 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 1797/2500K11 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 match diverse operational dynamics, CHG Bearing supplies 1797/2500K11 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.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 1797/2500K11, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
As standard production, CHG Bearing subjects 1797/2500K11 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
