GY / GYS / GYH Flange Coupling – High Torque Rigid Shaft Connection

The GY, GYS, and GYH flange coupling is a widely used rigid shaft coupling designed for high torque transmission and precise shaft alignment. Made from high-quality 45# forged steel, this flange coupling ensures excellent strength, durability, and stable performance in heavy-duty industrial applications.

This rigid flange coupling is ideal for applications where shaft misalignment is minimal and high transmission efficiency is required.

Key Features

• High Torque Capacity
  Suitable for heavy-duty machinery and high load applications
• Rigid Connection Design
  Ensures accurate shaft alignment and zero backlash transmission
• High Strength Material
  Manufactured from 45# forged steel for durability and wear resistance
• H7 Precision Bore
  Guarantees high concentricity and easy installation
• Multiple Alignment Types
  GY (bolt alignment), GYS (spigot alignment), GYH (enhanced design)

Types Explained

GY Type Flange Coupling

• Uses reamed bolt holes for precise alignment
• Easy installation without axial movement

GYS Type Flange Coupling

• Spigot (rabbet) alignment design
• Higher centering accuracy
• Requires axial movement during installation

GYH Type Flange Coupling

• Reinforced structure
• Suitable for higher torque and heavy-duty conditions

Applications

• CNC machines
• Metallurgical equipment
• Pumps and compressors
• Packaging machinery
• Power transmission systems

Customization Options

• Bore size (H7 tolerance)
• Keyway / taper bore
• Surface treatment (black oxide, coating)
• Special dimensions based on drawings

• rigid flange coupling
• rigid shaft coupling
• flanged shaft coupling
• GY flange coupling
• GYS coupling
• GYH coupling