Product Description
DDensen customized Flexible Oldham Coupling Set Screw Clamp Type Shaft Coupling for Servo Motor
| Product Name | Flexible Oldham Coupling Set Screw Clamp Type Shaft Coupling for Servo Motor |
| DN mm | 12~160mm |
| Rated Torque | 25~25000 N·m |
| Allowable speed | 15300~1500 N·m |
| Material | 35CrMo/ZG270/45# steel/Aluminum alloy |
| Application | Widely used in metallurgy, mining, engineering and other fields. |
Product show
Company Information
Equipment
Typical case of diaphragm coupling applied to variable frequency speed control equipment
JMB type coupling is applied to HangZhou Oilfield Thermal Power Plant
According to the requirements of HangZhou Electric Power Corporation, HangZhou Oilfield Thermal Power Plant should dynamically adjust the power generation according to the load of the power grid and market demand, and carry out the transformation of the frequency converter and the suction fan. The motor was originally a 1600KW, 730RPM non-frequency variable speed motor matched by HangZhou Motor Factory. The speed control mode after changing the frequency is manual control. Press the button speed to increase 10RPM or drop 10RPM. The coupling is still the original elastic decoupling coupling, and the elastic de-coupling coupling after frequency conversion is frequently damaged, which directly affects the normal power generation.
It is found through analysis that in the process of frequency conversion speed regulation, the pin of the coupling can not bear the inertia of the speed regulation process (the diameter of the fan impeller is 3.3 meters) and is cut off, which has great damage to the motor and the fan.
Later, they switched to the JMB460 double-diaphragm wheel-type coupling of our factory (patent number: ZL.99246247.9). After 1 hour of destructive experiment and more than 1 year of operation test, the equipment is running very well, and there is no Replace the diaphragm. 12 units have been rebuilt and the operation is in good condition.
Other Application Case
Spare parts
Packaging & Shipping
Why Choose Us
1. One stop service:
We have 5 own factories and 50+ sub-contractors located in different areas of China to offer you one-stop manufacturing and purchasing services to help you save time and reduce procurement cost.
2. Your eyes in China:
Our commitment to quality permeates from quoting, scheduling, production, inspection to deliver into your warehouse, our QC team will remark the errors if has on QC documents for your checking before delivery as your 3rd party.
3. Your R&Dconsultant:
With professional engineers team and 29 years manufacture experience ,we would help you work out problems during new parts’ development, optimize design and recommend the most cost-effective solution.
4. Your Emergency Solver:
With continued grown factories team and our QC teams located in different areas, if customers need to expedite the delivery, we would be able to adopt another factory to produce together immediately.
5. Quality Guaranty:
No matter how long time the products delivered, we are responsible for the quality. In case the products be rejected, we would replace them or return fund according to your demand without hesitation
FAQ Q1. Are you a manufacturer or a trader?
Manufacture, we have 5 own foundries, 4 in ZheJiang Province, 1 in ZHangZhoug Province
Q2. Do you have MOQ request?
1 pcs per order is ok with us , unless material is seldom used.
Q3. If I only have a sample,without drawings, can you quote then manufacture for me?
Just send us the sample, we would have the sample simulated and measured by professional equipment then issue formal drawings for
you , at the same time, we could help you optimize the design according to your demand and related processes’ feasibility.
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Different Sizes and Configurations of Oldham Couplings
Yes, Oldham couplings are available in various sizes and configurations to suit different applications and requirements. The sizes and configurations can vary based on factors such as torque capacity, shaft diameter, and overall dimensions. Some common variations include:
1. Shaft Diameters: Oldham couplings come in a range of shaft diameter options to accommodate different motor and shaft sizes. They can be found in standard metric and imperial sizes, making them compatible with various equipment and machinery.
2. Torque Capacity: Oldham couplings are designed to handle different torque capacities. The torque capacity of a coupling depends on its size, materials used, and overall construction. High-performance couplings can transmit higher torques, while smaller couplings may be suitable for lighter applications.
3. Coupling Length: The length of the coupling can vary, and some designs allow for compact installations in confined spaces, while others may have longer lengths for specific applications.
4. Materials: Oldham couplings are manufactured using various materials such as aluminum, stainless steel, and composite materials. The choice of material depends on factors like the operating environment, chemical resistance, and desired performance characteristics.
5. Spacer Type: Oldham couplings may have different spacer designs, including straight-spacer and step-spacer configurations. The choice of spacer type can affect the overall stiffness and misalignment capabilities of the coupling.
6. Hub Style: Oldham couplings come with different hub styles, such as set screw, clamp, or compression-style hubs, to accommodate various shaft attachment methods and ease of installation.
7. Backlash: Couplings may have different backlash characteristics, allowing for minimal angular play between the hubs to reduce vibration and shock loads.
Manufacturers of Oldham couplings typically provide detailed specifications and product catalogs that outline the available sizes and configurations. It’s essential to select the right coupling size and configuration that matches the requirements of the specific application to ensure optimal performance and longevity.
How do Temperature and Environmental Conditions Affect the Performance of an Oldham Coupling?
The performance of an Oldham coupling can be influenced by temperature and environmental conditions. The choice of materials used in the coupling’s construction plays a vital role in determining its suitability for specific operating environments. Here are some factors to consider:
Temperature: Extreme temperatures can affect the material properties of the Oldham coupling components. High temperatures can lead to thermal expansion, which might cause changes in the coupling’s dimensions and interfere with its performance. In contrast, low temperatures can make materials more brittle, reducing the coupling’s ability to withstand torque and misalignment. It is essential to select materials that can operate effectively within the temperature range of the intended application.
Corrosive Environments: In corrosive environments, such as chemical processing plants or marine applications, it is crucial to use materials that are resistant to corrosion. Stainless steel and other corrosion-resistant alloys are commonly used in such conditions to ensure the longevity and reliability of the Oldham coupling.
Dust and Contaminants: Dust, dirt, and other contaminants can accumulate on the coupling’s moving parts, leading to increased wear and reduced performance. Regular cleaning and maintenance are essential in environments where dust and contaminants are prevalent.
Humidity and Moisture: High humidity or moisture can lead to the formation of rust or corrosion on metal components. For applications in such environments, it is essential to use materials with proper corrosion resistance or consider protective coatings.
Shock and Vibration: In applications where the coupling is subjected to high levels of shock and vibration, it is essential to ensure that the coupling’s design and materials can withstand these dynamic forces without premature failure.
Proper selection of materials and regular maintenance can help mitigate the impact of temperature and environmental conditions on the performance of an Oldham coupling. Additionally, consulting with coupling manufacturers or engineering experts can provide valuable insights into choosing the most suitable coupling for specific operating conditions.
Transmission of Torque in Oldham Couplings
An Oldham coupling is designed to transmit torque between two shafts that are misaligned but parallel to each other. It consists of three components: two hubs (also known as drive hubs) and a center disc. The hubs are connected to their respective shafts, while the center disc sits between them.
The center disc of the Oldham coupling is characterized by slots or keyways on its opposite sides, which engage with the hubs. The slots allow the center disc to slide or float within the hubs while maintaining a constant angular velocity between the shafts.
When torque is applied to the drive hub on one side, it induces a rotational force on the center disc. This rotational force is then transferred to the other drive hub, which results in torque transmission to the second shaft. The center disc acts as an intermediary between the two hubs, compensating for any axial or radial misalignment between the shafts.
Regarding the question of different shaft diameters, the Oldham coupling can accommodate shafts with different diameters as long as the hub design allows for a secure connection. The keyways or slots in the center disc and hubs should be compatible with the shaft dimensions to ensure proper torque transmission and to prevent slippage or damage.
It is essential to select the appropriate size and design of the Oldham coupling to match the shaft diameters and to ensure reliable torque transmission while accommodating any misalignment between the shafts.
editor by CX 2024-03-06