Manufactured by CHG Bearing, the 78794G2 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 470 mm bore diameter, a 645 mm outer diameter, and a 55 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.
78794G2 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 78794G2 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 470 mm |
| Width (B) | 55 mm |
| Outer Diameter (D) | 645 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 610 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 520 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 16 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 13 |
| Outer Ring Mounting Hole Count n3 | 16 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 12 |
| Reference Data | |
| Reference Mass (kg) | 52.6 kg |
78794G2 645 mm 470 mm 55 mm 520 mm 610 mm Frequently Asked Questions about 78794G2 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts 78794G2 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.
To safeguard CHG Bearing 78794G2 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (470 mm x 645 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Absolutely. The CHG Bearing 78794G2 Four-Point Contact Ball Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 78794G2, FAG 78794G2, NSK 78794G2. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To match diverse operational dynamics, CHG Bearing supplies 78794G2 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.
