Manufactured by CHG Bearing, the 2787/1400GK1 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1400 mm bore diameter, a 1715 mm outer diameter, and a 110 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.
2787/1400GK1 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2787/1400GK1 |
| 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) | 1400 mm |
| Width (B) | 110 mm |
| Outer Diameter (D) | 1715 mm |
| Number of Lubrication Holes n1 | 2 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 1660 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1460 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 24 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 23 |
| Outer Ring Mounting Hole Count n3 | 24 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 23 |
| Gear Data | |
| Gear Module m | 6 mm |
| Gear Tip Diameter De | 1364.5 mm |
| Number of Gear Teeth z | 230 |
| Gear Face Width b | 77 mm |
| Addendum Modification Coefficient x | -0.35 |
| Reference Data | |
| Reference Mass (kg) | 545 kg |
2787/1400GK1 1715 mm 1400 mm 1660 mm 1460 mm 110 mm Frequently Asked Questions about 2787/1400GK1 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 2787/1400GK1 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (1400 mm x 1715 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Each 2787/1400GK1 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 (1400 mm bore side) ensures perfect planar contact without edge binding.
Quality starts with raw material selection: CHG Bearing crafts 2787/1400GK1 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 2787/1400GK1 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 1400 mm) and steep thermal gradients between inner and outer rings.
