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Home > Coupling > Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
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  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling

The Dongxu Plum-Blossom Coupling (ML Series) is used to connect standard motors to equipment

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Product description
Claw-type half couplings: Dongxu’s standard specification is 45# steel.

Plum Blossom Elastomer: A central petal-shaped polyurethane (PU) pad, typically available in hardness grades of 92A, 95A, and 98A, with corresponding colors such as yellow, red, and purple. It features oil resistance, wear resistance, and resistance to aging.
Overall structure: Designed without a stop ring; elastic limiting is achieved through the interlocking of the claw disc and the petals.
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  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
1/1
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Dongxu Plum-Blossom Coupling
  • Description
About Dongxu Plum-Blossom Coupling
The Dongxu Plum-Blossom Coupling (ML Series) is a classic flexible claw coupling and an integral part of Dongxu Hydraulics’ product line. It consists of two steel claw discs and a star-shaped polyurethane elastic pad. It produces less noise than rigid couplings and is “softer” than star-type couplings, offering superior shock absorption. Renowned for its cost-effectiveness, exceptional vibration damping performance, and ease of installation, this product is widely used across all sectors of industrial power transmission.

Product size drawing 

Type parameter list 
Model Rated Torque (Nm) L1 (mm) D2 (mm) L2 (mm) D1 (mm) t2 (mm) t1 (mm) D (mm) G1 G E (mm) S (mm)
GR19 17 25 30 25/37 39 13 13 39 M6 M6 14.5 1
GR24 60 30 40 30/50 54 10 25 54 M6 M6 15.2 1
GR28 160 35 50 35/60 64 13 25 64 M6 M6 19 2
GR38 325 40 60 70 70 15 30 79 M8 M8 22 2
GR42 450 45 70 75 85 20 35 94 M8 M8 24 2
GR48 525 56 75 80 95 25 40 104 M8 M10 25.5 3
GR55 685 55 90 90 110 22 45 119 M8 M10 27 3
GR65 940 75 100 100 115 30 45 135 M10 M10 32 3
GR75 1920 70 110 110 135 32 70 158 M10 M10 37 3
GR90 3600 70 135 140 160 40 60 198 M12 M12 42 4
GR100 4950 105 136 110 180 50 60 225 M12 M16 42 4
GR110 7200 120 200 120 200 50 70 255 M12 M16 42 4

Order description

Product Name

Model NO

Shaft diameter of machine

Oil pump shaft diameter

Plum-Blossom Coupling (ML Series) 

GR38 1b -38x70/1Φ-25x45

38 25

Key Features

  • Cost-effective and simple design: Few parts, easy to manufacture, low cost, and convenient to install and remove—simply insert axially.
  • Strong shock absorption and cushioning capabilities: Suitable for transmission applications involving frequent starts and stops and impact loads.
  • High installation tolerance: Even with slight installation errors, it does not cause direct bearing wear as rigid couplings do.
  • Maintenance-free, oil-resistant, and wear-resistant: The elastomer is typically made of polyurethane (PU), requiring no lubrication and virtually no maintenance during daily operation.

Application Scenarios
  • General industrial drives: Fans, pumps, conveyors, air compressors, and connections between standard motors and equipment.
  • Non-precision hydraulic systems: Low-pressure hydraulic stations, small lubrication pump units (non-main pump drives).
  • Light industry and automation equipment: Packaging machinery, textile machinery, woodworking machinery, and standard automated production lines.
  • Note: Not recommended for: Main pump drives inside hydraulic station bell housings: Poor spatial compatibility and lack of anti-disengagement design, posing safety hazards under high-speed vibration.



Packaging & Delivery
  • International Grade Packaging: Secured in reinforced export-standard crates to ensure the unit arrives in perfect condition.
  • Global Shipping: Fully compatible with export requirements for European (e.g., Poland), North American, and Southeast Asian markets.
  • Fast Lead Times: Direct from our production centers in Foshan, Wuxi, or Chengdu.

Certification & Quality Assurance
  • Certified Safety: Fully CE Certified for compliance with European safety and quality standards.
  • System Integrity: Manufactured under ISO9001 (Quality), ISO14001 (Environmental), and ISO10012 (Measurement) management systems.
  • Long Lifespan: Engineered for a product lifespan of up to 10 years+.
  • Guaranteed Quality: Every unit undergoes rigorous testing (Test Pressure) to ensure leak-free performance.

The MEISON Advantage 

  • Factory-Direct Expertise: With over 20 years of experience (founded in 2002), we provide professionally curated cooling solutions directly from the source.
  • Global Trusted Partner: Over 1,000,000 units sold to more than 6,000 customers worldwide.
  • R&D Innovation: Backed by over 60 patented achievements and collaborative research with prestigious universities.
  • Cinematic Industrial Design: Our products reflect technical authority and precision, designed to build immediate customer trust through an international corporate image.
(Frequently Asked Questions)

You are manufacturer or trading company?

We are a direct manufacturer, Dongxu Hydraulic Machinery Co., Ltd.
This means you get the most competitive factory price and direct technical support. There are no middlemen or traders involved. You are welcome to visit our factory at any time.

Can I have OEM service and put my logo on products or packaging?

Yes, OEM service is available. We offer customized solutions including brand logo printing, custom color painting, special thread types (G/BSPT/NPT), and SAE flange connections. Your brand identity is respected .

What is the lead time for this model?

It depends on the quantity. Shipment typically occurs within 10–15 business days after order confirmation. For large OEM orders, please contact us for confirmation.

What warranty services do you offer?

We offer a 12-month comprehensive warranty. In addition, we provide extended warranty and maintenance packages.
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