Product Description
PGCLZ Drum Gear Coupling with Brake Disc (Q/LZP02.03-2005)
♦Description
Drum gear type coupling belongs to rigid flexible coupling, gear type coupling is composed of inner gear ring and flange half coupling with outer gear with same number of teeth.Can improve the contact conditions of teeth, improve the ability to transfer torque, extend the service life.Radial, axial and angular axis deviation compensation ability, has a compact structure, small turning radius, large carrying capacity, high transmission efficiency, low noise and long maintenance cycle, especially suitable for the condition of low speed and heavy loading, such as metallurgy, mining, lifting transportation and other industries, can also be applied to petroleum, chemical industry, general machinery and other kinds of shaft transmission of machine.
♦Main Dimension and Parameter(Q/LZP02.03-2005)
| Type | Nominal Torque Tn/(N·m) |
Allowable Speed (n)/(r/min) |
Bore Diameter d1d2dz |
Bore Length (L) |
D0 | D | D1 | D2 | D3 | L0 | T | C1 | C2 | e | Grease dosage(v) mL |
Mess (m) kg |
Rotary inertia(l) L/(kg·m2) |
||
| Driven | Drive | Y | J1Z1 | ||||||||||||||||
| PGCLZ1 | 630 | 4000 | 20 | 24 | 52 | 38 | 315 | 125 | 95 | 60 | 80 | 90 | 30 | 25 | 39 | 30 | 60 | 5.4 | 0.01 |
| PGCLZ2 | 1120 | 4000 | 25 | 28 | 62 | 44 | 315 | 144 | 120 | 75 | 95 | 105 | 30 | 25.5 | 44 | 30 | 110 | 9.2 | 0.02 |
| PGCLZ3 | 2240 | 3550 | 30 | 38 | 82 | 60 | 355 | 174 | 140 | 95 | 115 | 130 | 30 | 18 | 40 | 30 | 155 | 16.4 | 0.04 |
| PGCLZ4 | 3550 | 2500 | 32 | 38 | 82 | 60 | 40 | 196 | 165 | 115 | 130 | 130 | 30 | 29 | 47 | 30 | 190 | 22.7 | 0.08 |
| PGCLZ5 | 5000 | 2500 | 40 | 56 | 112 | 84 | 400 | 224 | 183 | 130 | 150 | 150 | 30 | 18 | 43 | 30 | 300 | 36.2 | 0.15 |
| PGCLZ6 | 7100 | 2000 | 48 | 56 | 112 | 84 | 450 | 241 | 200 | 145 | 170 | 155 | 30 | 21 | 50 | 30 | 420 | 46.2 | 0.24 |
| PGCLZ7 | 10000 | 1700 | 60 | 75 | 142 | 107 | 450 | 265 | 230 | 160 | 190 | 180 | 30 | 19 | 50 | 30 | 630 | 68.4 | 0.43 |
| PGCLZ8 | 14000 | 1700 | 65 | 75 | 142 | 107 | 500 | 285 | 245 | 175 | 210 | 180 | 30 | 20 | 50 | 30 | 730 | 81.1 | 0.61 |
| PGCLZ9 | 18000 | 1600 | 70 | 75 | 142 | 107 | 560 | 314 | 270 | 200 | 225 | 200 | 30 | 25 | 60 | 30 | 770 | 100.1 | 0.94 |
| PGCLZ10 | 31500 | 1600 | 80 | 95 | 172 | 132 | 800 | 346 | 300 | 220 | 250 | 230 | 30 | 20 | 58 | 30 | 990 | 147.1 | 1.67 |
| PGCLZ11 | 40000 | 1400 | 100 | 120 | 212 | 167 | 800 | 385 | 330 | 260 | 285 | 260 | 30 | 21 | 64 | 40 | 1300 | 206.3 | 2.98 |
| PGCLZ12 | 56000 | 1400 | – | 120 | 212 | 167 | 900 | 442 | 380 | 290 | 325 | 280 | 30 | 21 | 72 | 40 | 2200 | 284.5 | 5.31 |
| PGCLZ13 | 80000 | 1400 | 140 | 150 | 252 | 202 | 900 | 482 | 420 | 320 | 360 | 320 | 30 | 22 | 70 | 40 | 3300 | 402 | 9.16 |
| PGCLZ14 | 112000 | 1200 | 160 | 180 | 302 | 242 | 900 | 520 | 465 | 360 | 410 | 360 | 30 | 23 | 85 | 40 | 4900 | 582.2 | 15.92 |
Note:
1. The mass and moment of inertia of the coupling are approximate values calculated according to the minimum shaft hole diameter and maximum shaft hole length in each type;
2. The maximum braking torque Tm of the coupling shall not exceed 2 times of the nominal torque Tn, that is, Tm≤ 2Tn;
3. e is the size required for sealing;
4. The combination of coupling shaft hole is Z1/J1, Y/Y, J1/J1, Y/J1.
♦Other Products List
| Transmission Machinery Parts Name |
Model |
| Universal Coupling | WS,WSD,WSP |
| Cardan Shaft | SWC,SWP,SWZ |
| Tooth Coupling | CL,CLZ,GCLD,GIICL, GICL,NGCL,GGCL,GCLK |
| Disc Coupling | JMI,JMIJ,JMII,JMIIJ |
| High Flexible Coupling | LM |
| Chain Coupling | GL |
| Jaw Coupling | LT |
| Grid Coupling | JS |
♦Our Company
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 the new model when there is new cars in the market.
5. Quality Control
Every step should be a special test by Professional Staff according to the standard of ISO9001 and TS16949.
♦FAQ
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 the customers with customized artworks in PDF or AI format.
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 a very good 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 1 pcs.
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: T/T.
♦Contact Us
Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

Common Applications of Disc Couplings
Disc couplings find extensive use across various industries and applications where reliable torque transmission, misalignment compensation, and torsional stiffness are essential. Some notable examples include:
- Industrial Machinery: Disc couplings are employed in industrial equipment such as pumps, compressors, generators, and conveyors. They ensure precise torque transfer and alignment in heavy-duty machinery.
- Power Generation: Gas turbines, steam turbines, and power generators often utilize disc couplings to transmit torque between components while withstanding high rotational speeds.
- Aerospace: In aircraft and spacecraft, disc couplings help connect critical systems like engines and auxiliary power units, ensuring dependable torque transmission in demanding environments.
- Marine: Ships and offshore platforms use disc couplings to connect propulsion systems, generators, and other machinery, even in conditions with variable loads and misalignments.
- Oil and Gas: Disc couplings play a crucial role in drilling rigs, pumps, and other equipment where reliable torque transmission and misalignment compensation are vital.
- Automotive: Some automotive applications use disc couplings to connect components within drivetrains and transmissions, especially in vehicles with high-performance requirements.
These examples highlight the versatility and importance of disc couplings in various industries where precise torque transmission, misalignment handling, and torsional stiffness are critical for optimal performance.

Impact of Number and Configuration of Disc Packs on Coupling Performance
The number and configuration of disc packs in a disc coupling have a significant impact on its overall performance. Here’s how:
- Number of Disc Packs: Increasing the number of disc packs can enhance the coupling’s torque capacity and stiffness. This allows it to handle higher levels of torque while maintaining its flexibility to accommodate misalignment.
- Configuration: Different configurations, such as single-flex, double-flex, or multiple-flex, offer varying degrees of angular misalignment compensation and torsional stiffness. Single-flex configurations provide greater misalignment capacity, while double-flex configurations offer improved torsional stiffness.
Choosing the appropriate number and configuration of disc packs depends on the specific application requirements:
- Torque Transmission: Applications with high torque demands may benefit from a higher number of disc packs to ensure reliable torque transmission.
- Misalignment Compensation: Applications with moderate misalignment may opt for configurations that offer higher angular misalignment compensation.
- Torsional Stiffness: For applications where torsional stiffness is critical, a configuration with multiple-disc packs may be preferred.
- Space Limitations: Consider the available space and coupling dimensions when choosing the number and configuration of disc packs.
- Dynamic Behavior: Depending on the application’s dynamic behavior and vibration characteristics, the appropriate configuration can be selected to minimize resonances.
Ultimately, the selection of the number and configuration of disc packs in a disc coupling should be based on a thorough understanding of the application’s torque, misalignment, and stiffness requirements to optimize coupling performance and reliability.

Considerations for Selecting a Disc Coupling for a Specific Application
Choosing the right disc coupling for a particular application involves considering several important factors to ensure optimal performance and reliability:
- Torque Requirements: Determine the maximum and continuous torque requirements of the application. Select a disc coupling that can handle the expected torque without exceeding its rated capacity.
- Misalignment: Evaluate the type and magnitude of misalignment expected in the system, including angular, parallel, and axial misalignment. Choose a disc coupling with the appropriate misalignment capability to accommodate these factors.
- Speed and RPM: Consider the operating speed and rotational speed of the connected shafts. High-speed applications may require disc couplings with balanced design to prevent vibration issues.
- Space Limitations: Evaluate the available space for installing the coupling. Disc couplings are compact and can be suitable for applications with limited space.
- Environmental Conditions: Assess the operating environment, including temperature, humidity, presence of corrosive agents, and exposure to dust or debris. Choose materials and coatings that can withstand the environmental conditions.
- Shaft Sizes: Ensure that the disc coupling’s hub bore sizes match the shaft sizes of the connected equipment.
- Alignment Maintenance: Consider the ease of installation and alignment maintenance. Some disc couplings feature spacer elements that simplify alignment and reduce downtime during maintenance.
- Backlash: Evaluate the backlash or play that the coupling introduces between the shafts. Backlash can affect the accuracy of position and torque transmission in precision applications.
- Dynamic Balancing: For high-speed applications, consider disc couplings that are dynamically balanced to prevent vibration issues that can arise from rotational imbalance.
- Resonance and Damping: Determine if the coupling design includes features to dampen vibrations and reduce the risk of resonance in the system.
- Service Life: Estimate the expected service life based on the application’s duty cycle and requirements. Choose a disc coupling with a suitable service life to avoid frequent replacements.
- Cost and Value: Compare the cost of the disc coupling with its features, performance benefits, and expected lifespan. Choose a coupling that provides the best value for your specific application.
By carefully considering these factors, you can select a disc coupling that meets the unique requirements of your machinery system and ensures reliable operation.


editor by CX 2023-11-30