Manufactured by CHG Bearing, the 79780G2 is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 400 mm bore diameter, a 660 mm outer diameter, and a 89 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.
79780G2 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 79780G2 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 400 mm |
| Width (B) | 89 mm |
| Outer Diameter (D) | 660 mm |
| Inner/Outer Ring Height H1 | 82 mm |
| End-face Height Difference h | 7 mm |
| Number of Lubrication Holes n1 | 4 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 620 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 440 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 20 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 22 |
| Outer Ring Mounting Hole Count n3 | 20 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 22 |
| Reference Data | |
| Reference Mass (kg) | 123 kg |
79780G2 660 mm 400 mm 89 mm 620 mm 440 mm Frequently Asked Questions about 79780G2 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 79780G2 Crossed Roller Slewing Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Engineered according to international ISO boundary plans, CHG Bearing supplies 79780G2 with a precision bore diameter (d) of 400 mm, an outside diameter (D) of 660 mm, and a nominal ring width (B) of 89 mm. This configuration yields an effective cross-sectional wall thickness of 130.0 mm and an envelope ratio (D/d) of 1.65, delivering compact rigidity for OEM machinery housings.
Built for demanding industrial environments, the 79780G2 Crossed Roller 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.
Every production batch of CHG Bearing 79780G2 Crossed Roller 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.
