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SDM Aluminum Alloy Double Diaphragm Coupling China Factory and Suppliers
High-performance SDM aluminum alloy double diaphragm coupling from a leading China factory. Featuring stainless steel diaphragms for zero backlash, these couplings are ideal for servo motor encoders. Contact our expert suppliers for durable, maintenance-free transmission solutions.
SupplierJulu County Binhao Transmission Equipment Co., Ltd.www.binhaocoupling.com
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About this product
Product information from the supplier.
The SDM Aluminum Alloy Double Diaphragm Clamp Coupling is a high-precision transmission solution specifically engineered for servo motor encoders and high-performance industrial drive systems. By integrating two premium stainless steel metal diaphragm groups with a lightweight aluminum alloy center sleeve, this coupling leverages elastic deformation to ensure seamless torque transmission while effectively neutralizing axial, radial, and angular misalignments between connected shafts.
Designed for demanding environments, the SDM series excels in high-speed rotations and frequent bidirectional movements. Its anodized aluminum construction provides superior corrosion resistance and low inertia, making it an essential component for CNC equipment, 3D printing, laser engraving, and advanced robotics where zero backlash and high torsional rigidity are non-negotiable for operational accuracy.
Detailed Parameters
| Axial Compensation | ±0.08 to ±0.9mm | Radial Compensation | 0.03 to 0.55mm |
|---|---|---|---|
| Angular Compensation | 1 to 1.5° | Max Rotational Speed | Up to 10,000 RPM |
| Torque Range | 0.25Nm to 100Nm | Balance Grade | G6.3 (ISO 1940) |
| Service Life | > 100,000 Hours | Operating Temp | -50℃ to +250℃ |
| Protection Level | IP54 (Anodized) | Overload Capacity | 200% Instantaneous Torque |
Key Advantages
Zero Backlash
Rigid diaphragm deformation eliminates rotational clearance, ensuring absolute precision for servo systems.
Maintenance-Free
No mechanical friction parts and no lubrication requirements significantly reduce downtime and labor costs.
High Fatigue Strength
Pre-stretched stainless steel diaphragms support over 10^7 cycles, ensuring long-term durability.
Lightweight Design
Aluminum alloy construction minimizes inertia, ideal for high-speed and frequent reversing applications.
Corrosion Resistance
Anodized surface protects against acid and alkali corrosion, meeting industrial IP54 standards.
System Longevity
Precise centering reduces wear on bearings and seals, extending equipment lifespan by over 30%.
Product Gallery
Management Platforms
Precision Matching
Optimized for servo motor and encoder synchronization to eliminate positioning errors.
Dynamic Stability
G6.3 balance grade ensures vibration-free operation at speeds up to 10,000 RPM.
Thermal Tolerance
Stable performance across extreme temperatures from -50℃ to +250℃.
Torque Flexibility
Versatile selection ranging from 0.25Nm for light loads to 100Nm for heavy-duty tasks.
Wear Reduction
Minimized centering errors extend the life of critical seals and bearings by 30%.
Fast Integration
Clamp-style fastening allows for rapid installation and easy shaft adjustments.
Investment Return Comparison
| Performance Metric | Standard Couplings | SDM Diaphragm Series |
|---|---|---|
| Maintenance Cycle | Regular Lubrication | Zero Maintenance |
| Backlash Level | Measurable Play | Absolute Zero |
| Bearing Lifespan | Standard Wear | +30% Extension |
| Rotation Speed | Moderate | Ultra High (10k RPM) |
| Operating Hours | Standard Cycle | > 100,000 Hours |
Frequently Asked Questions
Q: What makes the SDM coupling ideal for servo motors?
The SDM coupling features zero backlash and high torsional rigidity, which prevents positioning errors and ensures high-precision transmission required for servo and encoder systems.
Q: How does the aluminum alloy body benefit the application?
The aluminum alloy provides a lightweight structure with low inertia, which is critical for applications involving frequent forward and reverse rotations, such as CNC and 3D printing.
Q: Does the SDM coupling require regular lubrication?
No, it is entirely maintenance-free. Since there are no mechanical friction parts, it requires no lubrication throughout its entire service life of over 100,000 hours.
Q: What is the maximum speed this coupling can handle?
The SDM series can reach maximum rotational speeds of up to 10,000 RPM, supported by a balance grade of G6.3 according to ISO 1940 standards.
Q: How does it handle misalignment between shafts?
It utilizes elastic deformation of the stainless steel diaphragms to compensate for axial (±0.08 to ±0.9mm), radial (0.03 to 0.55mm), and angular (1 to 1.5°) deviations.
Q: Can it be used in corrosive environments?
Yes, the aluminum alloy surface is anodized and the diaphragms are stainless steel, providing resistance to acid and alkali corrosion meeting IP54 protection standards.
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Julu County Binhao Transmission Equipment Co., Ltd.
