DBL21 Series: High-Precision Keyless Diaphragm Couplings for Servo Systems

The DBL21 Series is a premium expansion sleeve diaphragm coupling designed for high-performance motion control. By utilizing a keyless expansion sleeve connection, it eliminates backlash and ensures easy assembly and disassembly while providing high sensitivity and large torque transmission. Ideal for CNC machine tools and precision motor connections, the DBL21 offers identical clockwise and counter-clockwise rotation characteristics.

Core Product Advantages

• Premium 45# Round Steel Construction: Machined from high-quality round steel to ensure high rigidity, high torque, and low inertia for fast dynamic responses.

• H7 Precision Bore: Internal bore tolerances are strictly controlled within H7 accuracy, ensuring exceptional concentricity and a perfect fit.

• 304 Stainless Steel Diaphragm Group: Utilizes imported circular or square elastic stainless steel discs that are durable, rust-proof, and capable of high fatigue resistance.

• Zero Backlash & Silent Operation: High-precision manufacturing ensures tight connections and minimal clearance, resulting in noise-free operation in precision machinery.

• Misalignment Compensation: The flexible stainless steel diaphragms effectively compensate for radial, angular, and axial deviations.

• Versatile Application: Specifically engineered for Servo Motors, Stepper Motors, and high-end CNC equipment.

Technical Specifications Table