The Yaesu GS-680U Universal Rotator Mast Bearing is an essential component for amateur radio enthusiasts and professionals seeking to enhance the performance and longevity of their antenna systems. Designed to provide robust support and stability for rotating masts, this heavy-duty thrust bearing ensures smooth and reliable operation, even under substantial lateral wind forces.

Key Features:

• Universal Compatibility: The GS-680U accommodates mast diameters ranging from 35 mm to 68 mm (1.5 to 2.5 inches), making it versatile for various antenna setups.
  

• Self-Adjusting Design: Engineered to correct for rotator offset, the bearing offers a swing angle of up to 5 degrees, ensuring optimal alignment and performance of your antenna system.
  

• Durable Construction: The main body is crafted from die-cast aluminum, providing a lightweight yet sturdy structure. The sliding ring is made of oil-impregnated resin, reducing friction and wear for prolonged, maintenance-free operation.
  

• Ease of Installation and Maintenance: The GS-680U can be disassembled, allowing for installation on existing masts without the need to remove antennas. This feature simplifies both initial setup and any necessary maintenance.
  

• Standardized Mounting: The bearing's installation holes are identical to those of the GS-65 model, facilitating straightforward upgrades or replacements within existing systems.
  
  

Technical Specifications:

• Mast Diameter Compatibility: 35 mm to 68 mm (1.5 to 2.5 inches)
  

• Maximum Swing Angle: 5 degrees
  

• Weight: Approximately 1.4 kg
  

• Materials:
  

• Main Body: Die-cast aluminum

• Sliding Ring: Oil-impregnated resin

Incorporating the Yaesu GS-680U into your antenna system not only enhances operational stability but also extends the lifespan of your rotator by effectively managing mechanical stresses. Its robust construction and thoughtful design make it a reliable choice for both amateur and professional applications.

Note: For additional information, look at the files under the "Documentation" tab.