The DD Series Spring Coupling is a highly flexible shaft connector designed to solve complex misalignment issues in small-scale power transmissions. Combining a robust zinc alloy body with a high-strength spring steel elastomer, this coupling offers low inertia and exceptional flexibility. It is the preferred choice for engineers dealing with non-coaxial shafts in encoders, stepper motors, and micro-motors.

Core Features & Benefits

• Superior Misalignment Correction: The high-strength spring steel center allows for large angular, radial, and axial deviations, effectively protecting your bearings from stress.

• Zinc Alloy Construction: The main body is crafted from premium zinc alloy, ensuring dimensional stability, low inertia, and high precision.

• H7 Precision Bore: Internal bores are machined to the H7 standard tolerance, guaranteeing high concentricity and a tight, secure lock on the shaft.

• 12.9 Grade Fasteners: Equipped with high-strength Grade 12.9 set screws (Gimi screws) to ensure the coupling remains firmly attached even under high-torque conditions.

• Easy Installation: The simple structure and set-screw fastening method allow for rapid assembly and disassembly in tight spaces.

Technical Specifications Table

Typical Applications

Our DD couplings are widely used in:

• CNC Machine Tools & Semiconductor Equipment

• Encoder & Sensor Feedback Systems

• Food Packaging & Printing Machinery

• Photovoltaic Power Generation & Chemical Industry

• Woodworking & Wood Processing Machinery