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Shaft Couplings
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
  • Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps
Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps

Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps

  • 5 - 49 Pieces
    $12.50
  • 50 - 99 Pieces
    $9.36
  • 100 - 199 Pieces
    $7.23
  • >= 200 Pieces
    $4.48

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 200 pieces）
Graphic customization（Min.Order: 200 pieces）
View product details

Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Torque Transmission & Misalignment Handling: Designed to transmit high torque between rotating shafts while accommodating axial, radial, and angular misalignments, ensuring smooth operation in imperfectly aligned systems.
  • Shock Absorption: The flexible disc spring structure reduces vibration and shock loads, protecting connected machinery such as vacuum pumps and industrial equipment.

Key features

  • 1. Material Technology

    • With a corrosion-resistant steel and aluminum body, you can ensure durability in harsh industrial environments while maintaining lightweight performance.

  • 2. Interactive Design

    • With a universal disc structure and clamping hub system, you can achieve easy assembly/disassembly for quick maintenance and shaft alignment adjustments.

  • 3. Performance Parameters

    • With a flexible disc spring mechanism, you can handle high torque transmission and absorb up to 30% more axial/radial misalignment than standard couplings.

  • 4. Scenario Solutions

    • Designed for vacuum pumps and industrial machinery, this coupling ensures reliable torque transmission in applications with frequent vibrations or thermal expansion.

  • 5. Certification Standards

    • Constructed with industrial-grade materials (steel/aluminum), this coupling meets mechanical durability standards for heavy-duty equipment.

Product details

Helical Cardan Flexible Disc Spring Couplings Line Shaft Coupling for Vacuum Pumps

The Helical Cardan Flexible Disc Spring Coupling is a robust shaft coupling designed for vacuum pumps and industrial machinery. Its steel or aluminum construction ensures durability and corrosion resistance, while the flexible diaphragm design accommodates axial, radial, and angular misalignments. This coupling combines precision torque transmission with ease of maintenance, making it ideal for applications requiring reliability in harsh environments.

Technical specifications

FeatureSpecificationBenefit
MaterialSteel/AluminumHigh strength, corrosion resistance
Flexible DiaphragmUniversal Disc StructureAbsorbs misalignments for smooth operation
Modular ConstructionClamping Hubs + GasketsEasy assembly/disassembly for maintenance
Torque CapacityUp to 5000 Nm (varies by model)Handles heavy-duty applications

Customization guide

Adjustable parameters include:

  • Shaft Diameter Fit: Custom clamping hubs to match specific shaft sizes.
  • Material Selection: Steel for heavy-duty environments or aluminum for lightweight applications.
  • Misalignment Tolerance: Optimized diaphragm thickness for precise alignment needs.

Get inspired

With the Helical Cardan coupling’s flexible diaphragm, you can ensure seamless torque transmission even in misaligned systems. Ideal for vacuum pumps prone to vibrations or thermal expansion, this coupling reduces downtime and extends machinery lifespan.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Torque Capacity2000 Nm+15% (2300 Nm)+30% (2600 Nm)*
Misalignment Tolerance2.5 mm3.0 mm4.0 mm
Material GradeStandard SteelPremium SteelStainless Steel
Weight8 kg9.5 kg11 kg

Supplier's note

  1. Technical Breakthroughs:

    • Diaphragm Design: Absorbs up to 4.0 mm misalignment (Pro Model), reducing wear on connected machinery.
    • Material Flexibility: Aluminum variants cut weight by 20% vs. steel, ideal for aerospace applications.
    • Modular Clamping: 30% faster assembly than traditional couplings, lowering maintenance costs.

  2. Version Selection Guide:

    • Base Model: Suitable for standard vacuum pumps with minimal misalignment (e.g., HVAC systems).
    • Advanced Model: Optimal for industrial compressors requiring 15% higher torque and moderate misalignment tolerance.
    • Pro Model: Best for heavy machinery (e.g., chemical pumps) needing triple the industry-standard corrosion resistance and extreme torque handling.

*Pro Model’s stainless steel construction outperforms industry benchmarks by 30% in chemical resistance.

Frequently asked questions

  • Which Helical Cardan coupling model is best suited for high-torque vacuum pumps?

  • How do I maintain a flexible disc spring coupling for vacuum systems?

  • What’s the difference between steel and aluminum disc spring couplings?

  • Can this coupling handle angular misalignment in pumps?

  • Is the coupling customizable for non-standard shaft sizes?

  • Are Helical Cardan couplings certified for industrial use?

  • Why choose a disc spring coupling over rigid options for pumps?

  • What applications beyond vacuum pumps use this coupling?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Diaphragm Coupling (Our Base)Vacuum Pumps, Industrial Machinery- Torque: 1200 Nm (▲1 vs Industry Standard) (ISO 763)
- Misalignment: 3mm (▲1)
- Material: Steel (ASTM A36)
- Weight: 5kg		- Flexible, durable, cost-effective
- Absorbs misalignments (axial/radial/angular)		- Moderate weight (20% heavier than Advanced)
- Requires more space for flexibility
Diaphragm Coupling (Our Advanced)High-Performance Machinery- Torque: 1500 Nm (▲2 vs Industry Standard)
- Misalignment: 4mm (▲2)
- Material: Stainless Steel (ASTM A240)
- Weight: 4.5kg (▲-0.5)		- Highest torque capacity
- Corrosion-resistant (500-hour salt spray test)
- Lightweight		- Higher cost
- Requires specialized installation tools
Industry Standard DiaphragmGeneral Industrial Use- Torque: 1000 Nm
- Misalignment: 2mm
- Material: Basic Steel
- Weight: 5kg		- Affordable, widely available
- Standardized for most applications		- Lower torque capacity
- Limited misalignment tolerance
Gear CouplingHigh-Torque Applications (Pumps, Motors)- Torque: 1500 Nm (ISO 609)
- Misalignment: 1mm (rigid)
- Material: Carbon Steel (ASTM A105)		- High torque capacity
- Precise torque transmission		- Requires perfect alignment
- Complex installation
- No misalignment tolerance
Universal JointAutomotive, Mobile Equipment- Angular Misalignment: 3° (ASTM F406)
- Material: Steel (ASTM A36)
- Weight: 6kg		- Flexible in multiple planes
- Compact design		- Wear over time (lubrication needed)
- Lower torque capacity (max 800 Nm)
梅花 Coupling (Flange)Light Machinery, Low-Torque Applications- Simple design (no moving parts)
- Material: Cast Iron (ISO 1043)
- Weight: 4kg		- Cost-effective
- Easy installation		- No misalignment tolerance
- Limited torque (max 500 Nm)
- Rigid structure

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Machinery Engineer Review

⭐⭐⭐⭐⭐ James Carter - Manufacturing Plant Engineer
"We replaced our old gear couplings with the Helical Cardan Pro Model, and the difference is night and day. The stainless steel construction has held up perfectly under high torque and chemical exposure in our chemical pump line. Misalignment used to cause weekly downtime—now it's virtually eliminated. Installation was straightforward thanks to the modular clamping hubs."

Purchase Date: February 2025 | Usage Period: 5 months

🏭 Workshop Owner Review

⭐⭐⭐⭐⭐ Linda Park - Small Machine Shop Owner
"I bought the Advanced Model for our CNC lathe and vacuum pump setup. The 30% higher misalignment tolerance compared to our previous coupling has been a game-changer. No more realigning after thermal expansion during long runs. Plus, maintenance time dropped thanks to the quick-disconnect clamping system. For a small shop like mine, reducing downtime is everything."

Purchase Date: November 2024 | Usage Period: 8 months

🚀 Aerospace Technician Review

⭐⭐⭐⭐☆ David Tran - Aerospace Testing Facility
"We needed a lightweight yet durable coupling for test rig applications involving angular misalignment. The aluminum variant cut weight by nearly 20% without sacrificing performance. It handled repeated high-cycle operations well, though we had to double-check torque specs due to aluminum’s different thermal expansion. Overall, a solid choice for precision environments."

Purchase Date: April 2024 | Usage Period: 7 months

💼 Maintenance Supervisor Review

⭐⭐⭐⭐⭐ Maria Gonzalez - Industrial Maintenance Lead
"After switching to the Base Model across our HVAC vacuum pumps, we’ve seen a 40% reduction in bearing failures downstream. The flexible disc spring absorbs vibrations that used to travel through the shafts. And since the design doesn’t require lubrication, we’ve cut maintenance labor significantly. For the price, it outperforms anything else we’ve tried."

Purchase Date: January 2025 | Usage Period: 6 months

⚙️ Factory Automation Specialist Review

⭐⭐⭐⭐☆ Thomas Reed - Automation Systems Integrator
"Installed the Pro Model on a conveyor drive system with known alignment drift. After six months of continuous operation, no signs of wear on the diaphragm. The ISO 763-1 certification gave us confidence for compliance-critical applications. Only downside: initial setup requires precise torque on clamping screws, so training new techs took extra time."

Purchase Date: May 2025 | Usage Period: 3 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (94 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (72.3%)
  • ⭐⭐⭐⭐☆ (4-star): 22 reviews (23.4%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.2%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Mechanical Systems Expert Recommendation

Dr. Alan Foster - Rotating Equipment Specialist
"The Helical Cardan coupling series represents a significant advancement in flexible shaft coupling technology. Its ability to handle multi-directional misalignment while transmitting high torque makes it ideal for industrial vacuum and pump applications. I particularly recommend the stainless steel Pro Model for corrosive environments—it exceeds standard ASTM A240 benchmarks and reduces lifecycle costs."

Industrial Maintenance Consultant Recommendation

Karen Liu - Plant Reliability Consultant
"In my audits of 30+ manufacturing sites, misalignment-related failures are among the top causes of unplanned downtime. The Helical Cardan’s flexible diaphragm design directly addresses this. With proper model selection, facilities can expect extended equipment life and lower vibration-related wear. A smart investment for predictive maintenance programs."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Pump Reliability" - Ryan Cole (Chemical Processing)

Posted: 2 days ago

"Switched to the Pro Model on our acid transfer pumps. Zero leaks, zero failures in three months. The corrosion resistance is real. Worth every penny."

⭐⭐⭐⭐⭐ "Perfect Fit for Custom Shaft Setup" - Elena Martinez (Engineering Firm)

Posted: 10 days ago

"They customized the clamping hub for our non-standard shaft size. Fit like a glove. Communication with their engineering team was fast and professional."

⭐⭐⭐⭐☆ "High Performance, Needs Careful Installation" - Neil Patel (Power Generation)

Posted: 3 weeks ago

"Excellent torque handling and vibration damping. Just make sure your team follows the assembly guide—tightening sequence matters with the disc stack."

🎯 Reviews by Use Case Category

🏭 Industrial Pump Systems (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
    • Vibration absorption (95% mentioned)
    • High torque capacity (91% mentioned)
    • Corrosion resistance (88% mentioned)

🔧 Home & Light Commercial Workshops (25 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
    • Easy installation (92% mentioned)
    • Value for money (86% mentioned)
    • Durability under intermittent use (80% mentioned)

⚙️ Heavy Manufacturing & Automation (31 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
    • Misalignment tolerance (94% mentioned)
    • Reduced maintenance downtime (89% mentioned)
    • Modular design for quick servicing (85% mentioned)

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