Manufactured by CHG Bearing, the 2788/1712 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 1790 mm bore diameter, a 2050 mm outer diameter, and a 112 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.
2788/1712 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2788/1712 |
| 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) | 1790 mm |
| Width (B) | 112 mm |
| Outer Diameter (D) | 2050 mm |
| Number of Lubrication Holes n1 | 18 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2006 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 1847 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 72 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Gear Data | |
| Gear Module m | 16 mm |
| Gear Tip Diameter De | 1712 mm |
| Number of Gear Teeth z | 108 |
| Gear Face Width b | 100 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 663 kg |
2788/1712 2050 mm 1790 mm 2006 mm 1847 mm 112 mm Frequently Asked Questions about 2788/1712 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing 2788/1712 Four-Point Contact Ball 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies 2788/1712 with a precision bore diameter (d) of 1790 mm, an outside diameter (D) of 2050 mm, and a nominal ring width (B) of 112 mm. This configuration yields an effective cross-sectional wall thickness of 130.0 mm and an envelope ratio (D/d) of 1.15, delivering compact rigidity for OEM machinery housings.
For international ocean and air freight, CHG Bearing packs 2788/1712 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Quality starts with raw material selection: CHG Bearing crafts 2788/1712 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.
