1. Overview Banner

High Precision DSG Single Diaphragm Clamping Couplings

Zero-Backlash High-Torque Flexible Disc Couplings for Servo & Stepper Motor Drives

Apex Coupling’s DSG Series Single Diaphragm Couplings feature imported SUS304 flexible stainless steel disc elements combined with precision-machined steel hubs (45# steel with black oxide finish or full SUS304 stainless steel). Engineered specifically for high-response servo motors and precision stepper motors, the DSG coupling provides zero backlash, exceptional torsional stiffness, and dynamic balancing for both forward and reverse high-speed positioning.

• Hub Material: High-Strength 45# Steel (Black Oxide) or SUS304 Stainless Steel

• Diaphragm Material: Premium SUS304 Stainless Steel Flexible Discs

• Fasteners: Grade 12.9 High-Strength Black Screws

• Connection Type: Clamping Hub Design (Keyless & Bolt Clamp)

• Bore Precision: H7 Inner Hole Tolerance

• Rotation Support: Forward and Reverse High-Precision Motion (Zero Backlash)

• Custom Bores Supported: Keyway (K), Hexagon (F), Square (S), Spline (H)

• MOQ: 1 PCS (Bulk factory supply & OEM customization available)

[ BUTTON: Request B2B Wholesale Quote ] | [ BUTTON: Download DSG Coupling Technical Drawing (PDF) ]

2. Key Features & Advantages

Why Choose Apex DSG Single Diaphragm Couplings?

1. Zero-Backlash Motion Control: Designed for high-precision motion transmission with zero rotational play, making it ideal for micro-stepping and fast-response servo positioning loops.

2. High Torsional Rigidity: High-strength SUS304 stainless steel diaphragms ensure exact rotational control under high acceleration/deceleration loads without dynamic angular distortion.

3. Secure Clamping Hub Design: Clamping screw attachment ensures quick, strain-free shaft fitting with high concentricity, eliminating shaft deformation or fretting corrosion.

4. H7 Precision Bore Matching: Machined to strict H7 hole tolerances to deliver maximal clamp force, reduce runout, and ensure vibration-free torque transfer up to high RPMs.

5. Corrosion Resistance & Longevity: Polished surface finish with optional SUS304 material upgrade provides excellent resistance against humidity, mild chemicals, and industrial oil exposure.

3. Technical Specifications & Dimension Chart

Technical Parameters & Model Specifications

Model Naming & Custom Hole Guide

• Standard Model Example: DSG-34×32-6×6 (Outer Diameter D = 34 mm, Length
  L = 32 mm, Shaft Bore d1 = 6 mm, Shaft Bore d2 = 6 mm)

• Custom Bore Suffix Options:

  • Keyway Bore: Add suffix K (e.g., 6K)

  • Hexagonal Bore: Add suffix F

  • Square Bore: Add suffix S

  • Splined Bore: Add suffix H

(Need double-diaphragm models, custom overall length, or special bore configurations? Consult our technical engineering team.)

4. Industrial Applications

Wide Range of Precision Industrial Applications

Apex DSG single diaphragm couplings are engineered for precision drive applications across modern automated industries:

• CNC Machine Tools & Automated Machining Centers

   

• Packaging & Food Machinery

   

• Semiconductor & Electronics Manufacturing Equipment

   

• Photovoltaic Solar Manufacturing Equipment

   

• Woodworking Machinery & Printing Presses

   

• Metallurgy, Chemical Machinery & Railway Systems

   

5. B2B Inquiry

Contact Apex Coupling for Wholesale Quotes & Custom CADs

Are you an OEM machine builder, distributor, or automation integrator looking for precision single diaphragm couplings? Submit your specifications below for direct factory pricing and technical support.

• Company Name / Business Title:

• Corporate Email Address:

• Target DSG Model / Bore Sizes (d1 / d2):

• Motor Type & Shaft Specifications (e.g., Servo 400W / 750W, Keyway required):

• Estimated Annual / Order Quantity:

• Upload Shaft/Machine Drawing (Optional):