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Welcome to Hebei Speed Torque Transmission Technology Co., Ltd., a trusted manufacturer established in 2017 with a factory spanning 3,000-5,000 square meters and an annual export value of US$5-10 million. Our SUS304 Coupling Diaphragm Disc is a precision-engineered spare part designed specifically for high-performance servo motor systems. Crafted from premium SUS304 stainless steel, this diaphragm disc delivers exceptional corrosion resistance, dimensional stability, and reliability even in demanding industrial environments. It serves as a critical component in flexible couplings, ensuring accurate torque transmission while compensating for misalignment and dampening vibration. Whether you are upgrading existing machinery or assembling new servo-driven equipment, our diaphragm disc offers a cost-effective, high-quality solution that meets the rigorous standards of modern automation.
Key Features & Benefits
Premium Material – SUS304 Stainless Steel: The disc is made from SUS304, which provides excellent resistance to rust, chemicals, and high temperatures. This ensures long service life in harsh operating conditions, reducing maintenance frequency and downtime.
High Precision Balancing: Each disc undergoes dynamic balancing to minimize vibration and noise during high-speed rotation. This is crucial for servo motor applications where smooth, accurate motion is required.
Flexible Torsion Design: The thin diaphragm structure allows for slight angular, parallel, and axial misalignment compensation without introducing excessive reaction forces to the connected shafts. This protects the servo motor bearings and extends the life of the entire drive train.
Customizable Sizes & Configurations: We offer a wide range of outer diameters (20-200mm), inner diameters (6-60mm), and thicknesses (0.5-2.0mm). Custom dimensions and hole patterns are available upon request to fit your specific coupling hub or shaft.
ISO9001 Certified Quality: Our manufacturing process is ISO9001 certified, ensuring consistent quality control from raw material sourcing to final inspection. Every batch is tested for hardness, flatness, and dimensional accuracy.
Versatile Applications: Ideal for use in servo motors, stepper motors, encoders, CNC machines, robotic arms, packaging equipment, and other precision automation systems.
Technical Specifications (Typical Parameters – Customizable)
| Parameter | Value Range | Notes |
|---|---|---|
| Outer Diameter (OD) | 20 – 200 mm | Customized per request |
| Inner Diameter (ID) | 6 – 60 mm | Matching shaft size |
| Thickness | 0.5 – 2.0 mm | Standard thickness, other available |
| Material Hardness | HRB 80-90 | Consistent with SUS304 specification |
| Max Operating Speed | Up to 10,000 RPM | Depends on OD and balance grade |
| Torque Capacity | 0.5 – 50 N·m | Varies with disc size and number of layers |
| Allowable Misalignment | Angular ≤ 1°, Parallel ≤ 0.2 mm, Axial ≤ 0.5 mm | Typical values, consult for exact |
| Balance Grade | G2.5 (ISO 1940) | Higher grades available |
Why Choose Our SUS304 Coupling Diaphragm Disc?
Durable & Corrosion-Resistant: SUS304 ensures the disc resists oxidation and chemical attack, making it suitable for food processing, medical, and marine applications.
Enhanced Servo Performance: The high precision design reduces torsional backlash and inertia mismatch, enabling faster acceleration, smoother motion, and higher position accuracy.
Easy Installation & Replacement: The disc is designed as a direct spare part for standard servo motor couplings. No special tools required – simply replace the worn disc and retighten the hub screws.
Cost-Effective Maintenance: Instead of replacing the entire coupling, you can replace only the disc, significantly lowering spare parts costs and reducing waste.
Global Shipping & Support: Our products are exported to markets worldwide including North America, South America, Europe, Asia, Africa, and Oceania. We offer reliable logistics from Shanghai, Tianjin, and Qingdao ports.
Trusted by Industry Leaders
Hebei Speed Torque Transmission Technology Co., Ltd. has been serving the global transmission industry since 2017. With a skilled team of 101-200 employees and an ISO9001-certified management system, we ensure every diaphragm disc meets strict quality criteria. Our annual export value of US$5-10 million reflects the trust our customers place in us. Whether you need standard sizes or fully customized designs, we provide prompt quotation, fast sample delivery, and dedicated after-sales support. Choose our SUS304 Coupling Diaphragm Disc for your servo motor spare parts – contact us today to experience reliable performance and professional service.
Frequently Asked Questions
Q: What material is used for the diaphragm disc?
A: It is made of SUS304 stainless steel, which offers excellent corrosion resistance and durability. For special environments, other stainless steel grades like SUS316 are available upon request.Q: Can I get custom dimensions for my coupling?
A: Yes, we support customization. You can provide your required outer diameter, inner diameter, thickness, and hole pattern. Our engineering team will manufacture accordingly.Q: Is this disc suitable for high-speed servo motors?
A: Absolutely. The disc is dynamically balanced to G2.5 grade or better, and can operate at speeds up to 10,000 RPM (depending on size). It is ideal for high-speed precision applications.Q: What is the typical lifespan of the disc?
A: With proper installation and within the specified misalignment limits, the disc can last several years in continuous operation. Its fatigue-resistant design reduces the risk of cracking.Q: Do you provide samples before bulk order?
A: Yes, we offer samples for evaluation. Sample lead time is typically 3-5 working days. Please contact our sales team for sample request.Q: How should I install the diaphragm disc?
A: Clean both shaft and hub surfaces, align the coupling, insert the disc, and tighten the clamping screws evenly. Avoid exceeding the maximum torque specification for the screws.Q: Does your company have quality certifications?
A: Yes, we are ISO9001 certified. Our factory follows strict quality control procedures, and each batch is tested for dimensional accuracy and material properties.Q: What are the payment terms and shipping ports?
A: We accept T/T, L/C, and other common terms. Main shipping ports are Shanghai, Tianjin, and Qingdao. We can also arrange door-to-door delivery for some destinations.
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