Manufactured by CHG Bearing, the D2787/1180K1 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1180 mm bore diameter, a 1500 mm outer diameter, and a 130 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.
D2787/1180K1 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | D2787/1180K1 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 1180 mm |
| Width (B) | 130 mm |
| Outer Diameter (D) | 1500 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1430 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1220 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 36 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 24 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 27 |
| Gear Data | |
| Gear Module m | 14 mm |
| Gear Tip Diameter De | 1120 mm |
| Number of Gear Teeth z | 80 |
| Gear Face Width b | 110 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 660 kg |
D2787/1180K1 1500 mm 1180 mm 1430 mm 1220 mm 130 mm Frequently Asked Questions about D2787/1180K1 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To match diverse operational dynamics, CHG Bearing supplies D2787/1180K1 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.
When fitting D2787/1180K1 over a 1180 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.
Standard batches of CHG Bearing D2787/1180K1 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies D2787/1180K1 with a precision bore diameter (d) of 1180 mm, an outside diameter (D) of 1500 mm, and a nominal ring width (B) of 130 mm. This configuration yields an effective cross-sectional wall thickness of 160.0 mm and an envelope ratio (D/d) of 1.27, delivering compact rigidity for OEM machinery housings.
