Manufactured by CHG Bearing, the 787/2279 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 2279 mm bore diameter, a 2721 mm outer diameter, and a 146 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.
787/2279 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 787/2279 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2279 mm |
| Width (B) | 146 mm |
| Outer Diameter (D) | 2721 mm |
| Number of Lubrication Holes n1 | 9 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2655 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2345 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 72 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 72 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Reference Data | |
| Reference Mass (kg) | 1751 kg |
787/2279 2721 mm 2279 mm 146 mm 2345 mm 2655 mm Frequently Asked Questions about 787/2279 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 787/2279 with a precision bore diameter (d) of 2279 mm, an outside diameter (D) of 2721 mm, and a nominal ring width (B) of 146 mm. This configuration yields an effective cross-sectional wall thickness of 221.0 mm and an envelope ratio (D/d) of 1.19, delivering compact rigidity for OEM machinery housings.
Built for demanding industrial environments, the 787/2279 Four-Point Contact Ball Slewing Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Standard batches of CHG Bearing 787/2279 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.
For international ocean and air freight, CHG Bearing packs 787/2279 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.
