Product Description

Drum Gear Shaft Coupling (NGCL)

NGCL type drum gear coupling belongs to the rigid and flexible coupling, gear coupling is composed of inner gear and the same number of teeth of the flange half band coupling parts etc.. External teeth into straight teeth and 2 kinds of drum gear tooth, the drum tooth is teeth made of the outer sphere, spherical center of the gear axis, gear backlash is large, giicl allows a larger angular displacement (relative to the straight tooth coupling), can improve the tooth contact conditions and improve the ability to transfer torque, prolong the service life. With the radial, axial and angular and axial deviation compensation ability, has the advantages of compact structure, small turning radius, its large carrying capacity, high transmission efficiency, low noise and long maintenance cycle, especially suitable for low speed and heavy load condition, such as metallurgy, mining, lifting, transportation and other industries are also applicable to the drive shaft of petroleum and chemical industry, general machinery and other kinds of machinery.


Model Tn
  Y,J1,Z1 DO D D1 C C1 H B3 Kg
dz,d1,d2 L
NGCL1 355 20-35 38-82 160 103 71 30 8 2.0 68 7.3
NGCL2 630 25-45 44-112 160 115 83 36 8 2.0 68 9.7
NGCL3 1000 28-56 44-112 200 127 95 41 8 2.0 85 15.2
NGCL4 1600 38-65 60-142 200 149 116 41 8 2.0 85 21.4
NGCL5 2800 40-75 84-142 250 167 134 48 8 2.5 105 33.1
NGCL6 4500 45-90 84-172 250 187 153 49 9 2.5 105 38.5
NGCL7 6300 50-100 84-212 315/(300) 204 170 53 9 2.5 132 61.8
NGCL8 9000 55-110 84-212 400 230 186 64 12 3.0 168 96.5
NGCL9 14000 60-130 107-252 500 256 212 71 13 3.0 210 151
NGCL10 20000 65-150 107-252 630/(600) 287 239 65 15 3.5 265 209
NGCL11 31500 70-170 107-302 710/(700) 325 276 77 16 3.5 298 300
NGCL12 45000 75-200 107-352 710/(700) 362 313 94 17 4.0 298 384
NGCL13 63000 150-220 202-352 800 412 350 88 18 4.5 335 544
NGCL14 100000 170-250 242-410 800 462 420 92 20 5.5 335 736

Detailed Photos

 Company Profile

HangZhou CHINAMFG Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 mechanical design and manufacture, heat treatment, welding, and other professionals.

Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.

Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. 

Our Services

1. Design Services
Our design team has experience in Cardan shafts relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.

2. Product Services
raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→Packing→Shipping

3. Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.

4. Research & Development
We usually research the new needs of the market and develop new models when there are new cars in the market.

5. Quality Control
Every step should be a particular test by Professional Staff according to the standard of ISO9001 and TS16949.


Q 1: Are you a trading company or a manufacturer?
A: We are a professional manufacturer specializing in manufacturing
various series of couplings.

Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all customers with customized PDF or AI format artwork.

Q 3:How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: Do you provide samples? Is it free or extra?
Yes, we could offer the sample but not for free. Actually, we have an excellent price principle, when you make the bulk order the cost of the sample will be deducted.

Q 5: How long is your warranty?
A: Our Warranty is 12 months under normal circumstances. 

Q 6: What is the MOQ?
A: Usually our MOQ is 1pcs.

Q 7: Do you have inspection procedures for coupling?
A:100% self-inspection before packing.

Q 8: Can I have a visit to your factory before the order? 
A: Sure, welcome to visit our factory.

Q 9: What’s your payment?
A:1) T/T. 

Contact Us

Web: huadingcoupling

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flange coupling

How Does a Gear Coupling Protect Connected Equipment from Shock Loads and Vibrations?

Gear couplings are designed to provide excellent protection to connected equipment from shock loads and vibrations, making them ideal for use in demanding and heavy-duty applications. The design and features of gear couplings that contribute to this protection include:

  • Flexible and Rigid Elements: Gear couplings consist of two hubs with external gears that mesh together. Between these two hubs, there is a center sleeve with internal gear teeth. The center sleeve acts as a flexible element, while the outer hubs act as rigid elements. This combination allows the gear coupling to transmit torque while absorbing and dampening shock loads and vibrations.
  • Misalignment Compensation: Gear couplings can accommodate angular, parallel, and axial misalignment between shafts. When the connected equipment experiences misalignment due to dynamic forces or shock loads, the gear coupling can flex and adjust to these changes, preventing excessive stress on the shafts and equipment.
  • High Torsional Stiffness: Gear couplings offer high torsional stiffness, meaning they have minimal angular deflection under load. This stiffness helps maintain precise alignment and reduces the likelihood of damage to the connected equipment caused by misalignment-induced vibrations.
  • Load Distribution: The toothed gear design of gear couplings ensures a large surface area of contact between the gears. This spreads the torque evenly across the gear teeth, resulting in a uniform distribution of load and reducing the concentration of stress on specific areas.
  • Damping Characteristics: The flexible center sleeve in the gear coupling acts as a damping element that absorbs and dissipates vibrations, further protecting the connected equipment from harmful oscillations.
  • High-Speed Balancing: Gear couplings are precisely balanced during manufacturing to minimize vibrations and ensure smooth operation even at high speeds. Proper balancing helps prevent resonances and reduces the impact of shock loads on the connected equipment.

By effectively absorbing and dampening shock loads and vibrations, gear couplings extend the life of the connected equipment and surrounding components, reduce maintenance requirements, and contribute to a more reliable and efficient mechanical system. However, it is essential to select the appropriate size and type of gear coupling based on the specific application and operating conditions to ensure optimal protection and performance.

China Custom Drum Gear Coupling Used for Chemical Industry  gear couplingChina Custom Drum Gear Coupling Used for Chemical Industry  gear coupling
editor by CX 2023-12-25