Product Description

HGTQ Series Application:

HGTQ series high-elastic coupling is a kind of torsion type high-elastic coupling. It is suitable for other medium and high-powered gearboxes produced by our company, and is also suitable for other power transmissions mainly powered by diesel engines and motors. . The structure mainly comprises a vibration damping ring assembly, an elastic plate and a main and driven end connecting member, which can effectively compensate radial, angular and axial displacement of adjacent machinery, absorb vibration, reduce resonance speed, and thereby improve shafting torsion. Features to extend equipment maintenance intervals and service life.
This series of high-elastic couplings has a rated torque range of TKN30=5-31.5kNm for a total of 9 size groups. Nearly 1 hundred HCT1100, HC1200, HC1250 and HCQ1400 have been matched before the official production. After nearly 5 years of trials, this series of high-elastic couplings is a new cost-effective product.

Products Introduction:
    The Company’s high elastic couplings digesting and absorbing German advanced technology were the result of self-R&D together with HangZhou Research Institute of Marine Gearbox, being recognized by CCS, ZY, BV, ABS, RINA, NK and LR. The company has passed through ISO9001:2008 accreditation.

    The Company has made itself available with perfect means of inspections. It has R&Ded dynamic tester on high elastic coupling – a fully independent intellectual right of our own – the first 1 of this type in China.

    Realizing zero rate of service due to product quality for 6 years in a row and achieving average use life of 7 to 8 years for easy worn-out parts, the Company has been the top 1 in this line in China in terms of capacity and market share.

    The concept of service: being devoted to ensuring customer satisfactions. The concept of management of maintaining standard institutions and advanced manufacturing and inspection equipment, being brave for innovations and making continuous improvements is essential to ensure quality products. A cordial welcome will be given for visit and guidance. 

HGTQ structure introduction:
1. The elastic element is ring-shaped, and the vent hole is arranged in the middle of the ring, which is beneficial to ventilation and heat dissipation. The diaphragm part can attenuate the axial reaction force, and protect the main and auxiliary machines. The 2 connection modes commonly used at the output end are applicable. In different installation spaces and working conditions, special connection methods can also be designed according to user requirements. The single-row elastomer has low relative cost, but the dynamic stiffness is relatively large, which is suitable for medium and high-speed diesel engines.



High-elastic products approved by the world’s multinational classification societies

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HGTQ Series products Suitable for independent rigid or elastic power transmission devices installed by the host,
Rated torque range 0.8-31.5kN.m
90% of the flexible installation of the “ADVANCE” light gearbox

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elastic coupling

Reducing Vibration and Shock in Machinery with Elastic Couplings

Elastic couplings play a crucial role in minimizing vibration and shock in machinery by offering flexibility and damping characteristics. Here’s how they contribute to this important function:

  • Vibration Absorption: Elastic couplings are designed with flexible elements that can absorb and dampen vibrations generated by rotating machinery. These flexible elements act as shock absorbers, reducing the transmission of vibrations to other parts of the system.
  • Isolation: The inherent flexibility of elastic couplings isolates vibrations and shocks from one side of the coupling to the other. This prevents vibrations from propagating throughout the connected components, helping to protect sensitive equipment and improve overall system performance.
  • Resonance Damping: Elastic couplings can help dampen resonance frequencies that can occur in machinery during operation. By absorbing and dissipating energy, they reduce the risk of resonance-related issues that can lead to mechanical failure or decreased efficiency.
  • Smooth Torque Transmission: Elastic couplings offer a smooth torque transmission that helps reduce sudden torque spikes and shocks during start-up or sudden load changes. This prevents abrupt mechanical stresses that can lead to vibration and shock propagation.
  • Increased Equipment Lifespan: By minimizing the impact of vibrations and shocks, elastic couplings contribute to the longevity of connected machinery and components. Reduced vibration-related wear and tear can extend the service life of the entire system.

Overall, elastic couplings are effective tools for managing vibration and shock in machinery, enhancing operational reliability, reducing maintenance needs, and maintaining optimal performance.

elastic coupling

Impact of Temperature Variations on Elastic Coupling Performance

Elastic couplings can be sensitive to temperature variations, and their performance can be influenced by both high and low temperatures:

1. High Temperatures: Elevated temperatures can cause the elastomeric material used in elastic couplings to soften, leading to a decrease in its mechanical properties. This can result in reduced torsional stiffness, damping capabilities, and overall coupling performance. High temperatures can also accelerate the aging process of the elastomer, leading to a shorter lifespan of the coupling. Additionally, excessive heat can cause thermal expansion of the coupling’s components, potentially leading to misalignment issues.

2. Low Temperatures: Extremely low temperatures can cause the elastomeric material to become more rigid, reducing its flexibility and damping characteristics. This can result in increased transmission of vibrations and shocks between connected components. Cold temperatures can also make the elastomer more brittle, increasing the risk of cracking or rupturing under mechanical stress.

It’s important to select an elastic coupling material that is suitable for the anticipated temperature range of the application. Some elastomers are formulated to perform well across a wide temperature range, while others are better suited for specific temperature conditions. Regular maintenance and inspection of elastic couplings in extreme temperature environments are crucial to ensure that the coupling continues to function as intended.

elastic coupling

Principles of Torsionally Elastic Couplings

Torsionally elastic couplings, also known as flexible couplings, operate based on the principles of flexibility and torsional elasticity. These couplings are designed to transmit torque while accommodating misalignments, dampening vibrations, and providing protection against shock loads. Here’s how they work:

  • Flexibility: Torsionally elastic couplings are made of materials that can flex or bend to some degree. This flexibility allows them to absorb misalignments between connected shafts, such as angular, parallel, and axial misalignments.
  • Torsional Elasticity: The material properties of the coupling allow it to twist or deform slightly under torque loads. When torque is applied to one end of the coupling, the coupling flexes and twists to transmit torque to the other end while compensating for any misalignments.
  • Vibration Dampening: The torsional elasticity of the coupling helps dampen vibrations that occur due to sudden torque changes or variations in load. This is especially important in applications where smooth operation and reduced vibrations are essential.
  • Shock Load Protection: Torsionally elastic couplings can absorb and mitigate shock loads that might occur during sudden starts, stops, or changes in load. This protection prevents damage to connected equipment and extends the lifespan of machinery.

Overall, torsionally elastic couplings enhance the performance, reliability, and durability of machinery by providing flexibility, dampening vibrations, and protecting against misalignments and shock loads.

China Best Sales Elastic Coupling Hgtq Series / Highly-Flexible Coupling /Marine Accessory  China Best Sales Elastic Coupling Hgtq Series / Highly-Flexible Coupling /Marine Accessory
editor by CX 2024-03-05